| /* Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "apr.h" |
| #include "apr_lib.h" |
| #include "apu.h" |
| #include "apr_private.h" |
| #include "apu_errno.h" |
| |
| #include <ctype.h> |
| #include <assert.h> |
| #include <stdlib.h> |
| |
| #include "apr_strings.h" |
| #include "apr_time.h" |
| #include "apr_buckets.h" |
| #include "apr_random.h" |
| |
| #include "apr_crypto_internal.h" |
| |
| #if APU_HAVE_CRYPTO |
| |
| #include <CommonCrypto/CommonCrypto.h> |
| #include <CommonCrypto/CommonDigest.h> |
| |
| #define LOG_PREFIX "apr_crypto_commoncrypto: " |
| |
| struct apr_crypto_t |
| { |
| apr_pool_t *pool; |
| const apr_crypto_driver_t *provider; |
| apu_err_t *result; |
| apr_hash_t *digests; |
| apr_hash_t *types; |
| apr_hash_t *modes; |
| apr_random_t *rng; |
| }; |
| |
| struct apr_crypto_key_t |
| { |
| apr_pool_t *pool; |
| const apr_crypto_driver_t *provider; |
| const apr_crypto_t *f; |
| const apr_crypto_key_rec_t *rec; |
| unsigned char *key; |
| void *hash; |
| CCAlgorithm algorithm; |
| CCOptions options; |
| int keyLen; |
| int ivSize; |
| CCHmacAlgorithm hmac; |
| apr_size_t blockSize; |
| apr_size_t digestSize; |
| }; |
| |
| struct apr_crypto_block_t |
| { |
| apr_pool_t *pool; |
| const apr_crypto_driver_t *provider; |
| const apr_crypto_t *f; |
| const apr_crypto_key_t *key; |
| CCCryptorRef ref; |
| }; |
| |
| struct apr_crypto_digest_t |
| { |
| apr_pool_t *pool; |
| const apr_crypto_driver_t *provider; |
| const apr_crypto_t *f; |
| const apr_crypto_key_t *key; |
| apr_crypto_digest_rec_t *rec; |
| CCHmacContext *hmac; |
| void *hash; |
| unsigned char *md; |
| }; |
| |
| static struct apr_crypto_block_key_digest_t key_digests[] = |
| { |
| { APR_CRYPTO_DIGEST_MD5, 16, 64 }, |
| { APR_CRYPTO_DIGEST_SHA1, 20, 64 }, |
| { APR_CRYPTO_DIGEST_SHA224, 28, 64 }, |
| { APR_CRYPTO_DIGEST_SHA256, 32, 64 }, |
| { APR_CRYPTO_DIGEST_SHA384, 48, 128 }, |
| { APR_CRYPTO_DIGEST_SHA512, 64, 128 } }; |
| |
| static struct apr_crypto_block_key_type_t key_types[] = |
| { |
| { APR_KEY_3DES_192, 24, 8, 8 }, |
| { APR_KEY_AES_128, 16, 16, 16 }, |
| { APR_KEY_AES_192, 24, 16, 16 }, |
| { APR_KEY_AES_256, 32, 16, 16 } }; |
| |
| static struct apr_crypto_block_key_mode_t key_modes[] = |
| { |
| { APR_MODE_ECB }, |
| { APR_MODE_CBC } }; |
| |
| /** |
| * Fetch the most recent error from this driver. |
| */ |
| static apr_status_t crypto_error(const apu_err_t **result, |
| const apr_crypto_t *f) |
| { |
| *result = f->result; |
| return APR_SUCCESS; |
| } |
| |
| /** |
| * Shutdown the crypto library and release resources. |
| */ |
| static apr_status_t crypto_shutdown(void) |
| { |
| return apr_crypto_lib_term("commoncrypto"); |
| } |
| |
| /** |
| * Initialise the crypto library and perform one time initialisation. |
| */ |
| static apr_status_t crypto_init(apr_pool_t *pool, const char *params, |
| const apu_err_t **result) |
| { |
| return apr_crypto_lib_init("commoncrypto", params, result, pool); |
| } |
| |
| /** |
| * @brief Clean encryption / decryption context. |
| * @note After cleanup, a context is free to be reused if necessary. |
| * @param ctx The block context to use. |
| * @return Returns APR_ENOTIMPL if not supported. |
| */ |
| static apr_status_t crypto_block_cleanup(apr_crypto_block_t *ctx) |
| { |
| |
| if (ctx->ref) { |
| CCCryptorRelease(ctx->ref); |
| ctx->ref = NULL; |
| } |
| |
| return APR_SUCCESS; |
| |
| } |
| |
| static apr_status_t crypto_block_cleanup_helper(void *data) |
| { |
| apr_crypto_block_t *block = (apr_crypto_block_t *) data; |
| return crypto_block_cleanup(block); |
| } |
| |
| /** |
| * @brief Clean sign / verify context. |
| * @note After cleanup, a context is free to be reused if necessary. |
| * @param ctx The digest context to use. |
| * @return Returns APR_ENOTIMPL if not supported. |
| */ |
| static apr_status_t crypto_digest_cleanup(apr_crypto_digest_t *ctx) |
| { |
| |
| return APR_SUCCESS; |
| |
| } |
| |
| static apr_status_t crypto_digest_cleanup_helper(void *data) |
| { |
| apr_crypto_digest_t *digest = (apr_crypto_digest_t *) data; |
| return crypto_digest_cleanup(digest); |
| } |
| |
| /** |
| * @brief Clean encryption / decryption context. |
| * @note After cleanup, a context is free to be reused if necessary. |
| * @param f The context to use. |
| * @return Returns APR_ENOTIMPL if not supported. |
| */ |
| static apr_status_t crypto_cleanup(apr_crypto_t *f) |
| { |
| |
| return APR_SUCCESS; |
| |
| } |
| |
| static apr_status_t crypto_cleanup_helper(void *data) |
| { |
| apr_crypto_t *f = (apr_crypto_t *) data; |
| return crypto_cleanup(f); |
| } |
| |
| /** |
| * @brief Create a context for supporting encryption. Keys, certificates, |
| * algorithms and other parameters will be set per context. More than |
| * one context can be created at one time. A cleanup will be automatically |
| * registered with the given pool to guarantee a graceful shutdown. |
| * @param f - context pointer will be written here |
| * @param provider - provider to use |
| * @param params - array of key parameters |
| * @param pool - process pool |
| * @return APR_ENOENGINE when the engine specified does not exist. APR_EINITENGINE |
| * if the engine cannot be initialised. |
| */ |
| static apr_status_t crypto_make(apr_crypto_t **ff, |
| const apr_crypto_driver_t *provider, const char *params, |
| apr_pool_t *pool) |
| { |
| apr_crypto_t *f = apr_pcalloc(pool, sizeof(apr_crypto_t)); |
| apr_status_t rv; |
| int i; |
| |
| if (!f) { |
| return APR_ENOMEM; |
| } |
| *ff = f; |
| f->pool = pool; |
| f->provider = provider; |
| |
| /* seed the secure random number generator */ |
| f->rng = apr_random_standard_new(pool); |
| if (!f->rng) { |
| return APR_ENOMEM; |
| } |
| do { |
| unsigned char seed[8]; |
| rv = apr_generate_random_bytes(seed, sizeof(seed)); |
| if (rv != APR_SUCCESS) { |
| return rv; |
| } |
| apr_random_add_entropy(f->rng, seed, sizeof(seed)); |
| rv = apr_random_secure_ready(f->rng); |
| } while (rv == APR_ENOTENOUGHENTROPY); |
| |
| f->result = apr_pcalloc(pool, sizeof(apu_err_t)); |
| if (!f->result) { |
| return APR_ENOMEM; |
| } |
| |
| f->digests = apr_hash_make(pool); |
| if (!f->digests) { |
| return APR_ENOMEM; |
| } |
| apr_hash_set(f->digests, "md5", APR_HASH_KEY_STRING, &(key_digests[i = 0])); |
| apr_hash_set(f->digests, "sha1", APR_HASH_KEY_STRING, &(key_digests[++i])); |
| apr_hash_set(f->digests, "sha224", APR_HASH_KEY_STRING, &(key_digests[++i])); |
| apr_hash_set(f->digests, "sha256", APR_HASH_KEY_STRING, &(key_digests[++i])); |
| apr_hash_set(f->digests, "sha384", APR_HASH_KEY_STRING, &(key_digests[++i])); |
| apr_hash_set(f->digests, "sha512", APR_HASH_KEY_STRING, &(key_digests[++i])); |
| |
| f->types = apr_hash_make(pool); |
| if (!f->types) { |
| return APR_ENOMEM; |
| } |
| apr_hash_set(f->types, "3des192", APR_HASH_KEY_STRING, &(key_types[i = 0])); |
| apr_hash_set(f->types, "aes128", APR_HASH_KEY_STRING, &(key_types[++i])); |
| apr_hash_set(f->types, "aes192", APR_HASH_KEY_STRING, &(key_types[++i])); |
| apr_hash_set(f->types, "aes256", APR_HASH_KEY_STRING, &(key_types[++i])); |
| |
| f->modes = apr_hash_make(pool); |
| if (!f->modes) { |
| return APR_ENOMEM; |
| } |
| apr_hash_set(f->modes, "ecb", APR_HASH_KEY_STRING, &(key_modes[i = 0])); |
| apr_hash_set(f->modes, "cbc", APR_HASH_KEY_STRING, &(key_modes[++i])); |
| |
| apr_pool_cleanup_register(pool, f, crypto_cleanup_helper, |
| apr_pool_cleanup_null); |
| |
| return APR_SUCCESS; |
| |
| } |
| |
| /** |
| * @brief Get a hash table of key digests, keyed by the name of the digest against |
| * a pointer to apr_crypto_block_key_digest_t. |
| * |
| * @param digests - hashtable of key digests keyed to constants. |
| * @param f - encryption context |
| * @return APR_SUCCESS for success |
| */ |
| static apr_status_t crypto_get_block_key_digests(apr_hash_t **digests, |
| const apr_crypto_t *f) |
| { |
| *digests = f->digests; |
| return APR_SUCCESS; |
| } |
| |
| /** |
| * @brief Get a hash table of key types, keyed by the name of the type against |
| * a pointer to apr_crypto_block_key_type_t. |
| * |
| * @param types - hashtable of key types keyed to constants. |
| * @param f - encryption context |
| * @return APR_SUCCESS for success |
| */ |
| static apr_status_t crypto_get_block_key_types(apr_hash_t **types, |
| const apr_crypto_t *f) |
| { |
| *types = f->types; |
| return APR_SUCCESS; |
| } |
| |
| /** |
| * @brief Get a hash table of key modes, keyed by the name of the mode against |
| * a pointer to apr_crypto_block_key_mode_t. |
| * |
| * @param modes - hashtable of key modes keyed to constants. |
| * @param f - encryption context |
| * @return APR_SUCCESS for success |
| */ |
| static apr_status_t crypto_get_block_key_modes(apr_hash_t **modes, |
| const apr_crypto_t *f) |
| { |
| *modes = f->modes; |
| return APR_SUCCESS; |
| } |
| |
| /* |
| * Work out which mechanism to use. |
| */ |
| static apr_status_t crypto_cipher_mechanism(apr_crypto_key_t *key, |
| const apr_crypto_block_key_type_e type, |
| const apr_crypto_block_key_mode_e mode, const int doPad, apr_pool_t *p) |
| { |
| /* handle padding */ |
| key->options = doPad ? kCCOptionPKCS7Padding : 0; |
| |
| /* determine the algorithm to be used */ |
| switch (type) { |
| |
| case (APR_KEY_3DES_192): |
| |
| /* A 3DES key */ |
| if (mode == APR_MODE_CBC) { |
| key->algorithm = kCCAlgorithm3DES; |
| key->keyLen = kCCKeySize3DES; |
| key->ivSize = kCCBlockSize3DES; |
| key->blockSize = kCCBlockSize3DES; |
| } |
| else { |
| key->algorithm = kCCAlgorithm3DES; |
| key->options += kCCOptionECBMode; |
| key->keyLen = kCCKeySize3DES; |
| key->ivSize = 0; |
| key->blockSize = kCCBlockSize3DES; |
| } |
| break; |
| |
| case (APR_KEY_AES_128): |
| |
| if (mode == APR_MODE_CBC) { |
| key->algorithm = kCCAlgorithmAES128; |
| key->keyLen = kCCKeySizeAES128; |
| key->ivSize = kCCBlockSizeAES128; |
| key->blockSize = kCCBlockSizeAES128; |
| } |
| else { |
| key->algorithm = kCCAlgorithmAES128; |
| key->options += kCCOptionECBMode; |
| key->keyLen = kCCKeySizeAES128; |
| key->ivSize = 0; |
| key->blockSize = kCCBlockSizeAES128; |
| } |
| break; |
| |
| case (APR_KEY_AES_192): |
| |
| if (mode == APR_MODE_CBC) { |
| key->algorithm = kCCAlgorithmAES128; |
| key->keyLen = kCCKeySizeAES192; |
| key->ivSize = kCCBlockSizeAES128; |
| key->blockSize = kCCBlockSizeAES128; |
| } |
| else { |
| key->algorithm = kCCAlgorithmAES128; |
| key->options += kCCOptionECBMode; |
| key->keyLen = kCCKeySizeAES192; |
| key->ivSize = 0; |
| key->blockSize = kCCBlockSizeAES128; |
| } |
| break; |
| |
| case (APR_KEY_AES_256): |
| |
| if (mode == APR_MODE_CBC) { |
| key->algorithm = kCCAlgorithmAES128; |
| key->keyLen = kCCKeySizeAES256; |
| key->ivSize = kCCBlockSizeAES128; |
| key->blockSize = kCCBlockSizeAES128; |
| } |
| else { |
| key->algorithm = kCCAlgorithmAES128; |
| key->options += kCCOptionECBMode; |
| key->keyLen = kCCKeySizeAES256; |
| key->ivSize = 0; |
| key->blockSize = kCCBlockSizeAES128; |
| } |
| break; |
| |
| default: |
| |
| /* TODO: Support CAST, Blowfish */ |
| |
| /* unknown key type, give up */ |
| return APR_EKEYTYPE; |
| |
| } |
| |
| /* make space for the key */ |
| key->key = apr_palloc(p, key->keyLen); |
| if (!key->key) { |
| return APR_ENOMEM; |
| } |
| apr_crypto_clear(p, key->key, key->keyLen); |
| |
| return APR_SUCCESS; |
| } |
| |
| static apr_status_t crypto_digest_mechanism(apr_crypto_key_t *key, |
| const apr_crypto_block_key_digest_e digest, apr_pool_t *p) |
| { |
| /* determine the digest algorithm to be used */ |
| switch (digest) { |
| case APR_CRYPTO_DIGEST_MD5: |
| key->digestSize = CC_MD5_DIGEST_LENGTH; |
| break; |
| case APR_CRYPTO_DIGEST_SHA1: |
| key->digestSize = CC_SHA1_DIGEST_LENGTH; |
| break; |
| case APR_CRYPTO_DIGEST_SHA224: |
| key->digestSize = CC_SHA224_DIGEST_LENGTH; |
| break; |
| case APR_CRYPTO_DIGEST_SHA256: |
| key->digestSize = CC_SHA256_DIGEST_LENGTH; |
| break; |
| case APR_CRYPTO_DIGEST_SHA384: |
| key->digestSize = CC_SHA384_DIGEST_LENGTH; |
| break; |
| case APR_CRYPTO_DIGEST_SHA512: |
| key->digestSize = CC_SHA512_DIGEST_LENGTH; |
| break; |
| default: |
| return APR_ENODIGEST; |
| } |
| |
| return APR_SUCCESS; |
| } |
| |
| /** |
| * @brief Create a key from the provided secret or passphrase. The key is cleaned |
| * up when the context is cleaned, and may be reused with multiple encryption |
| * or decryption operations. |
| * @note If *key is NULL, a apr_crypto_key_t will be created from a pool. If |
| * *key is not NULL, *key must point at a previously created structure. |
| * @param key The key returned, see note. |
| * @param rec The key record, from which the key will be derived. |
| * @param f The context to use. |
| * @param p The pool to use. |
| * @return Returns APR_ENOKEY if the pass phrase is missing or empty, or if a backend |
| * error occurred while generating the key. APR_ENOCIPHER if the type or mode |
| * is not supported by the particular backend. APR_EKEYTYPE if the key type is |
| * not known. APR_EPADDING if padding was requested but is not supported. |
| * APR_ENOTIMPL if not implemented. |
| */ |
| static apr_status_t crypto_key(apr_crypto_key_t **k, |
| const apr_crypto_key_rec_t *rec, const apr_crypto_t *f, apr_pool_t *p) |
| { |
| apr_status_t rv; |
| apr_crypto_key_t *key = *k; |
| |
| if (!key) { |
| *k = key = apr_pcalloc(p, sizeof *key); |
| } |
| if (!key) { |
| return APR_ENOMEM; |
| } |
| |
| key->pool = p; |
| key->f = f; |
| key->provider = f->provider; |
| key->rec = rec; |
| |
| switch (rec->ktype) { |
| |
| case APR_CRYPTO_KTYPE_PASSPHRASE: { |
| |
| /* decide on what cipher mechanism we will be using */ |
| rv = crypto_cipher_mechanism(key, rec->type, rec->mode, rec->pad, p); |
| if (APR_SUCCESS != rv) { |
| return rv; |
| } |
| |
| /* generate the key */ |
| if ((f->result->rc = CCKeyDerivationPBKDF(kCCPBKDF2, |
| rec->k.passphrase.pass, rec->k.passphrase.passLen, |
| rec->k.passphrase.salt, rec->k.passphrase.saltLen, |
| kCCPRFHmacAlgSHA1, rec->k.passphrase.iterations, key->key, |
| key->keyLen)) == kCCParamError) { |
| return APR_ENOKEY; |
| } |
| |
| break; |
| } |
| |
| case APR_CRYPTO_KTYPE_SECRET: { |
| |
| /* decide on what cipher mechanism we will be using */ |
| rv = crypto_cipher_mechanism(key, rec->type, rec->mode, rec->pad, p); |
| if (APR_SUCCESS != rv) { |
| return rv; |
| } |
| |
| /* sanity check - key correct size? */ |
| if (rec->k.secret.secretLen != key->keyLen) { |
| return APR_EKEYLENGTH; |
| } |
| |
| /* copy the key */ |
| memcpy(key->key, rec->k.secret.secret, rec->k.secret.secretLen); |
| |
| break; |
| } |
| |
| case APR_CRYPTO_KTYPE_HASH: { |
| |
| /* decide on what digest mechanism we will be using */ |
| rv = crypto_digest_mechanism(key, rec->k.hash.digest, p); |
| if (APR_SUCCESS != rv) { |
| return rv; |
| } |
| |
| switch (rec->k.hash.digest) { |
| case APR_CRYPTO_DIGEST_MD5: |
| key->digestSize = CC_MD5_DIGEST_LENGTH; |
| break; |
| case APR_CRYPTO_DIGEST_SHA1: |
| key->digestSize = CC_SHA1_DIGEST_LENGTH; |
| break; |
| case APR_CRYPTO_DIGEST_SHA224: |
| key->digestSize = CC_SHA224_DIGEST_LENGTH; |
| break; |
| case APR_CRYPTO_DIGEST_SHA256: |
| key->digestSize = CC_SHA256_DIGEST_LENGTH; |
| break; |
| case APR_CRYPTO_DIGEST_SHA384: |
| key->digestSize = CC_SHA384_DIGEST_LENGTH; |
| break; |
| case APR_CRYPTO_DIGEST_SHA512: |
| key->digestSize = CC_SHA512_DIGEST_LENGTH; |
| break; |
| default: |
| return APR_ENODIGEST; |
| } |
| |
| break; |
| } |
| case APR_CRYPTO_KTYPE_HMAC: { |
| |
| /* decide on what digest mechanism we will be using */ |
| rv = crypto_digest_mechanism(key, rec->k.hmac.digest, p); |
| if (APR_SUCCESS != rv) { |
| return rv; |
| } |
| |
| key->hmac = rec->k.hmac.digest; |
| |
| switch (rec->k.hmac.digest) { |
| case APR_CRYPTO_DIGEST_MD5: |
| key->hmac = kCCHmacAlgMD5; |
| break; |
| case APR_CRYPTO_DIGEST_SHA1: |
| key->hmac = kCCHmacAlgSHA1; |
| break; |
| case APR_CRYPTO_DIGEST_SHA224: |
| key->hmac = kCCHmacAlgSHA224; |
| break; |
| case APR_CRYPTO_DIGEST_SHA256: |
| key->hmac = kCCHmacAlgSHA256; |
| break; |
| case APR_CRYPTO_DIGEST_SHA384: |
| key->hmac = kCCHmacAlgSHA384; |
| break; |
| case APR_CRYPTO_DIGEST_SHA512: |
| key->hmac = kCCHmacAlgSHA512; |
| break; |
| default: |
| return APR_ENODIGEST; |
| } |
| |
| break; |
| } |
| |
| case APR_CRYPTO_KTYPE_CMAC: { |
| |
| return APR_ENOTIMPL; |
| |
| } |
| |
| default: { |
| |
| return APR_ENOKEY; |
| |
| } |
| } |
| |
| return APR_SUCCESS; |
| } |
| |
| /** |
| * @brief Create a key from the given passphrase. By default, the PBKDF2 |
| * algorithm is used to generate the key from the passphrase. It is expected |
| * that the same pass phrase will generate the same key, regardless of the |
| * backend crypto platform used. The key is cleaned up when the context |
| * is cleaned, and may be reused with multiple encryption or decryption |
| * operations. |
| * @note If *key is NULL, a apr_crypto_key_t will be created from a pool. If |
| * *key is not NULL, *key must point at a previously created structure. |
| * @param key The key returned, see note. |
| * @param ivSize The size of the initialisation vector will be returned, based |
| * on whether an IV is relevant for this type of crypto. |
| * @param pass The passphrase to use. |
| * @param passLen The passphrase length in bytes |
| * @param salt The salt to use. |
| * @param saltLen The salt length in bytes |
| * @param type 3DES_192, AES_128, AES_192, AES_256. |
| * @param mode Electronic Code Book / Cipher Block Chaining. |
| * @param doPad Pad if necessary. |
| * @param iterations Iteration count |
| * @param f The context to use. |
| * @param p The pool to use. |
| * @return Returns APR_ENOKEY if the pass phrase is missing or empty, or if a backend |
| * error occurred while generating the key. APR_ENOCIPHER if the type or mode |
| * is not supported by the particular backend. APR_EKEYTYPE if the key type is |
| * not known. APR_EPADDING if padding was requested but is not supported. |
| * APR_ENOTIMPL if not implemented. |
| */ |
| static apr_status_t crypto_passphrase(apr_crypto_key_t **k, apr_size_t *ivSize, |
| const char *pass, apr_size_t passLen, const unsigned char * salt, |
| apr_size_t saltLen, const apr_crypto_block_key_type_e type, |
| const apr_crypto_block_key_mode_e mode, const int doPad, |
| const int iterations, const apr_crypto_t *f, apr_pool_t *p) |
| { |
| apr_status_t rv; |
| apr_crypto_key_t *key = *k; |
| apr_crypto_key_rec_t *rec; |
| |
| if (!key) { |
| *k = key = apr_pcalloc(p, sizeof *key); |
| if (!key) { |
| return APR_ENOMEM; |
| } |
| } |
| |
| key->f = f; |
| key->provider = f->provider; |
| key->rec = rec = apr_pcalloc(p, sizeof(apr_crypto_key_rec_t)); |
| if (!key->rec) { |
| return APR_ENOMEM; |
| } |
| rec->ktype = APR_CRYPTO_KTYPE_PASSPHRASE; |
| |
| /* decide on what cipher mechanism we will be using */ |
| rv = crypto_cipher_mechanism(key, type, mode, doPad, p); |
| if (APR_SUCCESS != rv) { |
| return rv; |
| } |
| |
| /* generate the key */ |
| if ((f->result->rc = CCKeyDerivationPBKDF(kCCPBKDF2, pass, passLen, salt, |
| saltLen, kCCPRFHmacAlgSHA1, iterations, key->key, key->keyLen)) |
| == kCCParamError) { |
| return APR_ENOKEY; |
| } |
| |
| if (ivSize) { |
| *ivSize = key->ivSize; |
| } |
| |
| return APR_SUCCESS; |
| } |
| |
| /** |
| * @brief Initialise a context for encrypting arbitrary data using the given key. |
| * @note If *ctx is NULL, a apr_crypto_block_t will be created from a pool. If |
| * *ctx is not NULL, *ctx must point at a previously created structure. |
| * @param ctx The block context returned, see note. |
| * @param iv Optional initialisation vector. If the buffer pointed to is NULL, |
| * an IV will be created at random, in space allocated from the pool. |
| * If the buffer pointed to is not NULL, the IV in the buffer will be |
| * used. |
| * @param key The key structure. |
| * @param blockSize The block size of the cipher. |
| * @param p The pool to use. |
| * @return Returns APR_ENOIV if an initialisation vector is required but not specified. |
| * Returns APR_EINIT if the backend failed to initialise the context. Returns |
| * APR_ENOTIMPL if not implemented. |
| */ |
| static apr_status_t crypto_block_encrypt_init(apr_crypto_block_t **ctx, |
| const unsigned char **iv, const apr_crypto_key_t *key, |
| apr_size_t *blockSize, apr_pool_t *p) |
| { |
| unsigned char *usedIv; |
| apr_crypto_block_t *block = *ctx; |
| if (!block) { |
| *ctx = block = apr_pcalloc(p, sizeof(apr_crypto_block_t)); |
| } |
| if (!block) { |
| return APR_ENOMEM; |
| } |
| block->f = key->f; |
| block->pool = p; |
| block->provider = key->provider; |
| block->key = key; |
| |
| apr_pool_cleanup_register(p, block, crypto_block_cleanup_helper, |
| apr_pool_cleanup_null); |
| |
| switch (key->rec->ktype) { |
| |
| case APR_CRYPTO_KTYPE_PASSPHRASE: |
| case APR_CRYPTO_KTYPE_SECRET: { |
| |
| /* generate an IV, if necessary */ |
| usedIv = NULL; |
| if (key->ivSize) { |
| if (iv == NULL) { |
| return APR_ENOIV; |
| } |
| if (*iv == NULL) { |
| apr_status_t status; |
| usedIv = apr_pcalloc(p, key->ivSize); |
| if (!usedIv) { |
| return APR_ENOMEM; |
| } |
| apr_crypto_clear(p, usedIv, key->ivSize); |
| status = apr_random_secure_bytes(block->f->rng, usedIv, |
| key->ivSize); |
| if (APR_SUCCESS != status) { |
| return status; |
| } |
| *iv = usedIv; |
| } else { |
| usedIv = (unsigned char *) *iv; |
| } |
| } |
| |
| /* create a new context for encryption */ |
| switch ((block->f->result->rc = CCCryptorCreate(kCCEncrypt, |
| key->algorithm, key->options, key->key, key->keyLen, usedIv, |
| &block->ref))) { |
| case kCCSuccess: { |
| break; |
| } |
| case kCCParamError: { |
| return APR_EINIT; |
| } |
| case kCCMemoryFailure: { |
| return APR_ENOMEM; |
| } |
| case kCCAlignmentError: { |
| return APR_EPADDING; |
| } |
| case kCCUnimplemented: { |
| return APR_ENOTIMPL; |
| } |
| default: { |
| return APR_EINIT; |
| } |
| } |
| |
| if (blockSize) { |
| *blockSize = key->blockSize; |
| } |
| |
| return APR_SUCCESS; |
| |
| } |
| default: { |
| |
| return APR_EINVAL; |
| |
| } |
| } |
| |
| } |
| |
| /** |
| * @brief Encrypt data provided by in, write it to out. |
| * @note The number of bytes written will be written to outlen. If |
| * out is NULL, outlen will contain the maximum size of the |
| * buffer needed to hold the data, including any data |
| * generated by apr_crypto_block_encrypt_finish below. If *out points |
| * to NULL, a buffer sufficiently large will be created from |
| * the pool provided. If *out points to a not-NULL value, this |
| * value will be used as a buffer instead. |
| * @param out Address of a buffer to which data will be written, |
| * see note. |
| * @param outlen Length of the output will be written here. |
| * @param in Address of the buffer to read. |
| * @param inlen Length of the buffer to read. |
| * @param ctx The block context to use. |
| * @return APR_ECRYPT if an error occurred. Returns APR_ENOTIMPL if |
| * not implemented. |
| */ |
| static apr_status_t crypto_block_encrypt(unsigned char **out, |
| apr_size_t *outlen, const unsigned char *in, apr_size_t inlen, |
| apr_crypto_block_t *block) |
| { |
| switch (block->key->rec->ktype) { |
| |
| case APR_CRYPTO_KTYPE_PASSPHRASE: |
| case APR_CRYPTO_KTYPE_SECRET: { |
| |
| apr_size_t outl = *outlen; |
| unsigned char *buffer; |
| |
| /* are we after the maximum size of the out buffer? */ |
| if (!out) { |
| *outlen = CCCryptorGetOutputLength(block->ref, inlen, 1); |
| return APR_SUCCESS; |
| } |
| |
| /* must we allocate the output buffer from a pool? */ |
| if (!*out) { |
| outl = CCCryptorGetOutputLength(block->ref, inlen, 1); |
| buffer = apr_palloc(block->pool, outl); |
| if (!buffer) { |
| return APR_ENOMEM; |
| } |
| apr_crypto_clear(block->pool, buffer, outl); |
| *out = buffer; |
| } |
| |
| switch ((block->f->result->rc = CCCryptorUpdate(block->ref, in, inlen, (*out), |
| outl, &outl))) { |
| case kCCSuccess: { |
| break; |
| } |
| case kCCBufferTooSmall: { |
| return APR_ENOSPACE; |
| } |
| default: { |
| return APR_ECRYPT; |
| } |
| } |
| *outlen = outl; |
| |
| return APR_SUCCESS; |
| |
| } |
| default: { |
| |
| return APR_EINVAL; |
| |
| } |
| } |
| |
| } |
| |
| /** |
| * @brief Encrypt final data block, write it to out. |
| * @note If necessary the final block will be written out after being |
| * padded. Typically the final block will be written to the |
| * same buffer used by apr_crypto_block_encrypt, offset by the |
| * number of bytes returned as actually written by the |
| * apr_crypto_block_encrypt() call. After this call, the context |
| * is cleaned and can be reused by apr_crypto_block_encrypt_init(). |
| * @param out Address of a buffer to which data will be written. This |
| * buffer must already exist, and is usually the same |
| * buffer used by apr_evp_crypt(). See note. |
| * @param outlen Length of the output will be written here. |
| * @param ctx The block context to use. |
| * @return APR_ECRYPT if an error occurred. |
| * @return APR_EPADDING if padding was enabled and the block was incorrectly |
| * formatted. |
| * @return APR_ENOTIMPL if not implemented. |
| */ |
| static apr_status_t crypto_block_encrypt_finish(unsigned char *out, |
| apr_size_t *outlen, apr_crypto_block_t *block) |
| { |
| switch (block->key->rec->ktype) { |
| |
| case APR_CRYPTO_KTYPE_PASSPHRASE: |
| case APR_CRYPTO_KTYPE_SECRET: { |
| |
| apr_size_t len = *outlen; |
| |
| block->f->result->rc = CCCryptorFinal(block->ref, out, |
| CCCryptorGetOutputLength(block->ref, 0, 1), &len); |
| |
| /* always clean up */ |
| crypto_block_cleanup(block); |
| |
| switch (block->f->result->rc) { |
| case kCCSuccess: { |
| break; |
| } |
| case kCCBufferTooSmall: { |
| return APR_ENOSPACE; |
| } |
| case kCCAlignmentError: { |
| return APR_EPADDING; |
| } |
| case kCCDecodeError: { |
| return APR_ECRYPT; |
| } |
| default: { |
| return APR_ECRYPT; |
| } |
| } |
| *outlen = len; |
| |
| return APR_SUCCESS; |
| |
| } |
| default: { |
| |
| return APR_EINVAL; |
| |
| } |
| } |
| |
| } |
| |
| /** |
| * @brief Initialise a context for decrypting arbitrary data using the given key. |
| * @note If *ctx is NULL, a apr_crypto_block_t will be created from a pool. If |
| * *ctx is not NULL, *ctx must point at a previously created structure. |
| * @param ctx The block context returned, see note. |
| * @param blockSize The block size of the cipher. |
| * @param iv Optional initialisation vector. If the buffer pointed to is NULL, |
| * an IV will be created at random, in space allocated from the pool. |
| * If the buffer is not NULL, the IV in the buffer will be used. |
| * @param key The key structure. |
| * @param p The pool to use. |
| * @return Returns APR_ENOIV if an initialisation vector is required but not specified. |
| * Returns APR_EINIT if the backend failed to initialise the context. Returns |
| * APR_ENOTIMPL if not implemented. |
| */ |
| static apr_status_t crypto_block_decrypt_init(apr_crypto_block_t **ctx, |
| apr_size_t *blockSize, const unsigned char *iv, |
| const apr_crypto_key_t *key, apr_pool_t *p) |
| { |
| switch (key->rec->ktype) { |
| |
| case APR_CRYPTO_KTYPE_PASSPHRASE: |
| case APR_CRYPTO_KTYPE_SECRET: { |
| |
| apr_crypto_block_t *block = *ctx; |
| if (!block) { |
| *ctx = block = apr_pcalloc(p, sizeof(apr_crypto_block_t)); |
| } |
| if (!block) { |
| return APR_ENOMEM; |
| } |
| block->f = key->f; |
| block->pool = p; |
| block->provider = key->provider; |
| block->key = key; |
| |
| apr_pool_cleanup_register(p, block, crypto_block_cleanup_helper, |
| apr_pool_cleanup_null); |
| |
| /* generate an IV, if necessary */ |
| if (key->ivSize) { |
| if (iv == NULL) { |
| return APR_ENOIV; |
| } |
| } |
| |
| /* create a new context for decryption */ |
| switch ((block->f->result->rc = CCCryptorCreate(kCCDecrypt, key->algorithm, |
| key->options, key->key, key->keyLen, iv, &block->ref))) { |
| case kCCSuccess: { |
| break; |
| } |
| case kCCParamError: { |
| return APR_EINIT; |
| } |
| case kCCMemoryFailure: { |
| return APR_ENOMEM; |
| } |
| case kCCAlignmentError: { |
| return APR_EPADDING; |
| } |
| case kCCUnimplemented: { |
| return APR_ENOTIMPL; |
| } |
| default: { |
| return APR_EINIT; |
| } |
| } |
| |
| if (blockSize) { |
| *blockSize = key->blockSize; |
| } |
| |
| return APR_SUCCESS; |
| |
| } |
| default: { |
| |
| return APR_EINVAL; |
| |
| } |
| } |
| |
| } |
| |
| /** |
| * @brief Decrypt data provided by in, write it to out. |
| * @note The number of bytes written will be written to outlen. If |
| * out is NULL, outlen will contain the maximum size of the |
| * buffer needed to hold the data, including any data |
| * generated by apr_crypto_block_decrypt_finish below. If *out points |
| * to NULL, a buffer sufficiently large will be created from |
| * the pool provided. If *out points to a not-NULL value, this |
| * value will be used as a buffer instead. |
| * @param out Address of a buffer to which data will be written, |
| * see note. |
| * @param outlen Length of the output will be written here. |
| * @param in Address of the buffer to read. |
| * @param inlen Length of the buffer to read. |
| * @param ctx The block context to use. |
| * @return APR_ECRYPT if an error occurred. Returns APR_ENOTIMPL if |
| * not implemented. |
| */ |
| static apr_status_t crypto_block_decrypt(unsigned char **out, |
| apr_size_t *outlen, const unsigned char *in, apr_size_t inlen, |
| apr_crypto_block_t *block) |
| { |
| switch (block->key->rec->ktype) { |
| |
| case APR_CRYPTO_KTYPE_PASSPHRASE: |
| case APR_CRYPTO_KTYPE_SECRET: { |
| |
| apr_size_t outl = *outlen; |
| unsigned char *buffer; |
| |
| /* are we after the maximum size of the out buffer? */ |
| if (!out) { |
| *outlen = CCCryptorGetOutputLength(block->ref, inlen, 1); |
| return APR_SUCCESS; |
| } |
| |
| /* must we allocate the output buffer from a pool? */ |
| if (!*out) { |
| outl = CCCryptorGetOutputLength(block->ref, inlen, 1); |
| buffer = apr_palloc(block->pool, outl); |
| if (!buffer) { |
| return APR_ENOMEM; |
| } |
| apr_crypto_clear(block->pool, buffer, outl); |
| *out = buffer; |
| } |
| |
| switch ((block->f->result->rc = CCCryptorUpdate(block->ref, in, inlen, (*out), |
| outl, &outl))) { |
| case kCCSuccess: { |
| break; |
| } |
| case kCCBufferTooSmall: { |
| return APR_ENOSPACE; |
| } |
| default: { |
| return APR_ECRYPT; |
| } |
| } |
| *outlen = outl; |
| |
| return APR_SUCCESS; |
| |
| } |
| default: { |
| |
| return APR_EINVAL; |
| |
| } |
| } |
| |
| } |
| |
| /** |
| * @brief Decrypt final data block, write it to out. |
| * @note If necessary the final block will be written out after being |
| * padded. Typically the final block will be written to the |
| * same buffer used by apr_crypto_block_decrypt, offset by the |
| * number of bytes returned as actually written by the |
| * apr_crypto_block_decrypt() call. After this call, the context |
| * is cleaned and can be reused by apr_crypto_block_decrypt_init(). |
| * @param out Address of a buffer to which data will be written. This |
| * buffer must already exist, and is usually the same |
| * buffer used by apr_evp_crypt(). See note. |
| * @param outlen Length of the output will be written here. |
| * @param ctx The block context to use. |
| * @return APR_ECRYPT if an error occurred. |
| * @return APR_EPADDING if padding was enabled and the block was incorrectly |
| * formatted. |
| * @return APR_ENOTIMPL if not implemented. |
| */ |
| static apr_status_t crypto_block_decrypt_finish(unsigned char *out, |
| apr_size_t *outlen, apr_crypto_block_t *block) |
| { |
| switch (block->key->rec->ktype) { |
| |
| case APR_CRYPTO_KTYPE_PASSPHRASE: |
| case APR_CRYPTO_KTYPE_SECRET: { |
| |
| apr_size_t len = *outlen; |
| |
| block->f->result->rc = CCCryptorFinal(block->ref, out, |
| CCCryptorGetOutputLength(block->ref, 0, 1), &len); |
| |
| /* always clean up */ |
| crypto_block_cleanup(block); |
| |
| switch (block->f->result->rc) { |
| case kCCSuccess: { |
| break; |
| } |
| case kCCBufferTooSmall: { |
| return APR_ENOSPACE; |
| } |
| case kCCAlignmentError: { |
| return APR_EPADDING; |
| } |
| case kCCDecodeError: { |
| return APR_ECRYPT; |
| } |
| default: { |
| return APR_ECRYPT; |
| } |
| } |
| *outlen = len; |
| |
| return APR_SUCCESS; |
| |
| } |
| default: { |
| |
| return APR_EINVAL; |
| |
| } |
| } |
| |
| } |
| |
| static apr_status_t crypto_digest_init(apr_crypto_digest_t **ctx, |
| const apr_crypto_key_t *key, apr_crypto_digest_rec_t *rec, apr_pool_t *p) |
| { |
| |
| apr_crypto_digest_t *digest = *ctx; |
| |
| if (!digest) { |
| *ctx = digest = apr_pcalloc(p, sizeof(apr_crypto_digest_t)); |
| } |
| if (!digest) { |
| return APR_ENOMEM; |
| } |
| digest->f = key->f; |
| digest->pool = p; |
| digest->provider = key->provider; |
| digest->key = key; |
| digest->rec = rec; |
| |
| apr_pool_cleanup_register(p, digest, crypto_digest_cleanup_helper, |
| apr_pool_cleanup_null); |
| |
| switch (digest->key->rec->ktype) { |
| |
| case APR_CRYPTO_KTYPE_HASH: { |
| |
| switch (key->rec->k.hash.digest) { |
| case APR_CRYPTO_DIGEST_MD5: |
| digest->hash = apr_pcalloc(p, sizeof(CC_MD5_CTX)); |
| CC_MD5_Init(digest->hash); |
| break; |
| case APR_CRYPTO_DIGEST_SHA1: |
| digest->hash = apr_pcalloc(p, sizeof(CC_SHA1_CTX)); |
| CC_SHA1_Init(digest->hash); |
| break; |
| case APR_CRYPTO_DIGEST_SHA224: |
| digest->hash = apr_pcalloc(p, sizeof(CC_SHA256_CTX)); |
| CC_SHA224_Init(digest->hash); |
| break; |
| case APR_CRYPTO_DIGEST_SHA256: |
| digest->hash = apr_pcalloc(p, sizeof(CC_SHA256_CTX)); |
| CC_SHA256_Init(digest->hash); |
| break; |
| case APR_CRYPTO_DIGEST_SHA384: |
| digest->hash = apr_pcalloc(p, sizeof(CC_SHA512_CTX)); |
| CC_SHA384_Init(digest->hash); |
| break; |
| case APR_CRYPTO_DIGEST_SHA512: |
| digest->hash = apr_pcalloc(p, sizeof(CC_SHA512_CTX)); |
| CC_SHA512_Init(digest->hash); |
| break; |
| default: |
| return APR_ENODIGEST; |
| } |
| |
| break; |
| } |
| case APR_CRYPTO_KTYPE_HMAC: { |
| |
| digest->hmac = apr_pcalloc(p, sizeof(CCHmacContext)); |
| if (!digest->hmac) { |
| return APR_ENOMEM; |
| } |
| |
| CCHmacInit(digest->hmac, key->hmac, key->rec->k.hmac.secret, |
| key->rec->k.hmac.secretLen); |
| |
| break; |
| } |
| |
| case APR_CRYPTO_KTYPE_CMAC: { |
| |
| return APR_ENOTIMPL; |
| |
| } |
| |
| default: { |
| |
| return APR_EINVAL; |
| |
| } |
| } |
| |
| return APR_SUCCESS; |
| } |
| |
| static apr_status_t crypto_digest_update(apr_crypto_digest_t *digest, |
| const unsigned char *in, apr_size_t inlen) |
| { |
| |
| switch (digest->key->rec->ktype) { |
| |
| case APR_CRYPTO_KTYPE_HASH: { |
| |
| switch (digest->key->rec->k.hash.digest) { |
| case APR_CRYPTO_DIGEST_MD5: |
| CC_MD5_Update(digest->hash, in, inlen); |
| break; |
| case APR_CRYPTO_DIGEST_SHA1: |
| CC_SHA1_Update(digest->hash, in, inlen); |
| break; |
| case APR_CRYPTO_DIGEST_SHA224: |
| CC_SHA224_Update(digest->hash, in, inlen); |
| break; |
| case APR_CRYPTO_DIGEST_SHA256: |
| CC_SHA256_Update(digest->hash, in, inlen); |
| break; |
| case APR_CRYPTO_DIGEST_SHA384: |
| CC_SHA384_Update(digest->hash, in, inlen); |
| break; |
| case APR_CRYPTO_DIGEST_SHA512: |
| CC_SHA512_Update(digest->hash, in, inlen); |
| break; |
| default: |
| return APR_ENODIGEST; |
| } |
| |
| break; |
| } |
| case APR_CRYPTO_KTYPE_HMAC: { |
| |
| CCHmacUpdate(digest->hmac, in, inlen); |
| |
| break; |
| } |
| |
| case APR_CRYPTO_KTYPE_CMAC: { |
| |
| return APR_ENOTIMPL; |
| |
| } |
| |
| default: { |
| |
| return APR_EINVAL; |
| |
| } |
| } |
| |
| return APR_SUCCESS; |
| } |
| |
| static apr_status_t crypto_digest_final(apr_crypto_digest_t *digest) |
| { |
| |
| switch (digest->key->rec->ktype) { |
| |
| case APR_CRYPTO_KTYPE_HASH: { |
| |
| size_t len = digest->key->digestSize; |
| |
| /* must we allocate the output buffer from a pool? */ |
| if (!digest->rec->d.hash.s || digest->rec->d.hash.slen != len) { |
| digest->rec->d.hash.slen = len; |
| digest->rec->d.hash.s = apr_palloc(digest->pool, len); |
| if (!digest->rec->d.hash.s) { |
| return APR_ENOMEM; |
| } |
| apr_crypto_clear(digest->pool, digest->rec->d.hash.s, len); |
| } |
| |
| switch (digest->key->rec->k.hash.digest) { |
| case APR_CRYPTO_DIGEST_MD5: |
| CC_MD5_Final(digest->rec->d.hash.s, digest->hash); |
| break; |
| case APR_CRYPTO_DIGEST_SHA1: |
| CC_SHA1_Final(digest->rec->d.hash.s, digest->hash); |
| break; |
| case APR_CRYPTO_DIGEST_SHA224: |
| CC_SHA224_Final(digest->rec->d.hash.s, digest->hash); |
| break; |
| case APR_CRYPTO_DIGEST_SHA256: |
| CC_SHA256_Final(digest->rec->d.hash.s, digest->hash); |
| break; |
| case APR_CRYPTO_DIGEST_SHA384: |
| CC_SHA384_Final(digest->rec->d.hash.s, digest->hash); |
| break; |
| case APR_CRYPTO_DIGEST_SHA512: |
| CC_SHA512_Final(digest->rec->d.hash.s, digest->hash); |
| break; |
| default: |
| return APR_ENODIGEST; |
| } |
| |
| break; |
| } |
| case APR_CRYPTO_KTYPE_HMAC: { |
| |
| apr_status_t status = APR_SUCCESS; |
| |
| size_t len = digest->key->digestSize; |
| |
| switch (digest->rec->dtype) { |
| case APR_CRYPTO_DTYPE_SIGN: { |
| |
| /* must we allocate the output buffer from a pool? */ |
| if (!digest->rec->d.sign.s || digest->rec->d.sign.slen != len) { |
| digest->rec->d.sign.slen = len; |
| digest->rec->d.sign.s = apr_palloc(digest->pool, len); |
| if (!digest->rec->d.sign.s) { |
| return APR_ENOMEM; |
| } |
| apr_crypto_clear(digest->pool, digest->rec->d.sign.s, len); |
| } |
| |
| /* then, determine the signature */ |
| CCHmacFinal(digest->hmac, digest->rec->d.sign.s); |
| |
| break; |
| } |
| case APR_CRYPTO_DTYPE_VERIFY: { |
| |
| /* must we allocate the output buffer from a pool? */ |
| if (!digest->rec->d.verify.s |
| || digest->rec->d.verify.slen != len) { |
| digest->rec->d.verify.slen = len; |
| digest->rec->d.verify.s = apr_palloc(digest->pool, len); |
| if (!digest->rec->d.verify.s) { |
| return APR_ENOMEM; |
| } |
| apr_crypto_clear(digest->pool, digest->rec->d.verify.s, |
| len); |
| } |
| |
| /* then, determine the signature */ |
| CCHmacFinal(digest->hmac, digest->rec->d.verify.s); |
| |
| if (digest->rec->d.verify.slen |
| == digest->rec->d.verify.vlen) { |
| status = |
| apr_crypto_equals(digest->rec->d.verify.s, |
| digest->rec->d.verify.v, |
| digest->rec->d.verify.slen) ? |
| APR_SUCCESS : APR_ENOVERIFY; |
| } else { |
| status = APR_ENOVERIFY; |
| } |
| |
| break; |
| } |
| default: { |
| status = APR_ENODIGEST; |
| break; |
| } |
| } |
| |
| return status; |
| |
| } |
| |
| case APR_CRYPTO_KTYPE_CMAC: { |
| |
| return APR_ENOTIMPL; |
| |
| } |
| |
| default: { |
| |
| return APR_EINVAL; |
| |
| } |
| } |
| |
| return APR_SUCCESS; |
| } |
| |
| static apr_status_t crypto_digest( |
| const apr_crypto_key_t *key, apr_crypto_digest_rec_t *rec, const unsigned char *in, |
| apr_size_t inlen, apr_pool_t *p) |
| { |
| apr_crypto_digest_t *digest = NULL; |
| apr_status_t status = APR_SUCCESS; |
| |
| status = crypto_digest_init(&digest, key, rec, p); |
| if (APR_SUCCESS == status) { |
| status = crypto_digest_update(digest, in, inlen); |
| if (APR_SUCCESS == status) { |
| status = crypto_digest_final(digest); |
| } |
| } |
| |
| return status; |
| } |
| |
| /** |
| * OSX Common Crypto module. |
| */ |
| APR_MODULE_DECLARE_DATA const apr_crypto_driver_t apr_crypto_commoncrypto_driver = |
| { |
| "commoncrypto", crypto_init, crypto_make, |
| crypto_get_block_key_digests, crypto_get_block_key_types, |
| crypto_get_block_key_modes, crypto_passphrase, |
| crypto_block_encrypt_init, crypto_block_encrypt, |
| crypto_block_encrypt_finish, crypto_block_decrypt_init, |
| crypto_block_decrypt, crypto_block_decrypt_finish, |
| crypto_digest_init, crypto_digest_update, crypto_digest_final, |
| crypto_digest, crypto_block_cleanup, crypto_digest_cleanup, |
| crypto_cleanup, crypto_shutdown, crypto_error, crypto_key |
| }; |
| |
| #endif |