| <!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `/root/.cargo/registry/src/github.com-1ecc6299db9ec823/ring-0.16.20/src/ec/suite_b/ecdsa/verification.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>verification.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../../../../normalize.css"><link rel="stylesheet" href="../../../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../../../../ayu.css" disabled><link rel="stylesheet" href="../../../../../dark.css" disabled><link rel="stylesheet" href="../../../../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../../../../storage.js"></script><script defer src="../../../../../source-script.js"></script><script defer src="../../../../../source-files.js"></script><script defer src="../../../../../main.js"></script><noscript><link rel="stylesheet" href="../../../../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../../../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../../../../favicon.svg"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><a class="sidebar-logo" href="../../../../../ring/index.html"><div class="logo-container"><img class="rust-logo" src="../../../../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../../../../ring/index.html"><img class="rust-logo" src="../../../../../rust-logo.svg" alt="logo"></a><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../../../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../../../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../../../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span> |
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| </pre><pre class="rust"><code><span class="comment">// Copyright 2015-2016 Brian Smith. |
| // |
| // Permission to use, copy, modify, and/or distribute this software for any |
| // purpose with or without fee is hereby granted, provided that the above |
| // copyright notice and this permission notice appear in all copies. |
| // |
| // THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES |
| // WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| // MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY |
| // SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| // WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
| // OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
| // CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| |
| </span><span class="doccomment">//! ECDSA Signatures using the P-256 and P-384 curves. |
| |
| </span><span class="kw">use </span><span class="kw">super</span>::digest_scalar::digest_scalar; |
| <span class="kw">use crate</span>::{ |
| arithmetic::montgomery::<span class="kw-2">*</span>, |
| digest, |
| ec::suite_b::{ops::<span class="kw-2">*</span>, public_key::<span class="kw-2">*</span>, verify_jacobian_point_is_on_the_curve}, |
| error, |
| io::der, |
| limb, sealed, signature, |
| }; |
| |
| <span class="doccomment">/// An ECDSA verification algorithm. |
| </span><span class="kw">pub struct </span>EcdsaVerificationAlgorithm { |
| ops: <span class="kw-2">&</span><span class="lifetime">'static </span>PublicScalarOps, |
| digest_alg: <span class="kw-2">&</span><span class="lifetime">'static </span>digest::Algorithm, |
| split_rs: |
| <span class="kw">for</span><<span class="lifetime">'a</span>> <span class="kw">fn</span>( |
| ops: <span class="kw-2">&</span><span class="lifetime">'static </span>ScalarOps, |
| input: <span class="kw-2">&mut </span>untrusted::Reader<<span class="lifetime">'a</span>>, |
| ) |
| -> <span class="prelude-ty">Result</span><(untrusted::Input<<span class="lifetime">'a</span>>, untrusted::Input<<span class="lifetime">'a</span>>), error::Unspecified>, |
| id: AlgorithmID, |
| } |
| |
| <span class="attribute">#[derive(Debug)] |
| </span><span class="kw">enum </span>AlgorithmID { |
| ECDSA_P256_SHA256_ASN1, |
| ECDSA_P256_SHA256_FIXED, |
| ECDSA_P256_SHA384_ASN1, |
| ECDSA_P384_SHA256_ASN1, |
| ECDSA_P384_SHA384_ASN1, |
| ECDSA_P384_SHA384_FIXED, |
| } |
| |
| <span class="macro">derive_debug_via_id!</span>(EcdsaVerificationAlgorithm); |
| |
| <span class="kw">impl </span>signature::VerificationAlgorithm <span class="kw">for </span>EcdsaVerificationAlgorithm { |
| <span class="kw">fn </span>verify( |
| <span class="kw-2">&</span><span class="self">self</span>, |
| public_key: untrusted::Input, |
| msg: untrusted::Input, |
| signature: untrusted::Input, |
| ) -> <span class="prelude-ty">Result</span><(), error::Unspecified> { |
| <span class="kw">let </span>e = { |
| <span class="comment">// NSA Guide Step 2: "Use the selected hash function to compute H = |
| // Hash(M)." |
| </span><span class="kw">let </span>h = digest::digest(<span class="self">self</span>.digest_alg, msg.as_slice_less_safe()); |
| |
| <span class="comment">// NSA Guide Step 3: "Convert the bit string H to an integer e as |
| // described in Appendix B.2." |
| </span>digest_scalar(<span class="self">self</span>.ops.scalar_ops, h) |
| }; |
| |
| <span class="self">self</span>.verify_digest(public_key, e, signature) |
| } |
| } |
| |
| <span class="kw">impl </span>EcdsaVerificationAlgorithm { |
| <span class="doccomment">/// This is intentionally not public. |
| </span><span class="kw">fn </span>verify_digest( |
| <span class="kw-2">&</span><span class="self">self</span>, |
| public_key: untrusted::Input, |
| e: Scalar, |
| signature: untrusted::Input, |
| ) -> <span class="prelude-ty">Result</span><(), error::Unspecified> { |
| <span class="comment">// NSA Suite B Implementer's Guide to ECDSA Section 3.4.2. |
| |
| </span><span class="kw">let </span>public_key_ops = <span class="self">self</span>.ops.public_key_ops; |
| <span class="kw">let </span>scalar_ops = <span class="self">self</span>.ops.scalar_ops; |
| |
| <span class="comment">// NSA Guide Prerequisites: |
| // |
| // Prior to accepting a verified digital signature as valid the |
| // verifier shall have: |
| // |
| // 1. assurance of the signatory’s claimed identity, |
| // 2. an authentic copy of the domain parameters, (q, FR, a, b, SEED, |
| // G, n, h), |
| // 3. assurance of the validity of the public key, and |
| // 4. assurance that the claimed signatory actually possessed the |
| // private key that was used to generate the digital signature at |
| // the time that the signature was generated. |
| // |
| // Prerequisites #1 and #4 are outside the scope of what this function |
| // can do. Prerequisite #2 is handled implicitly as the domain |
| // parameters are hard-coded into the source. Prerequisite #3 is |
| // handled by `parse_uncompressed_point`. |
| </span><span class="kw">let </span>peer_pub_key = parse_uncompressed_point(public_key_ops, public_key)<span class="question-mark">?</span>; |
| |
| <span class="kw">let </span>(r, s) = signature.read_all(error::Unspecified, |input| { |
| (<span class="self">self</span>.split_rs)(scalar_ops, input) |
| })<span class="question-mark">?</span>; |
| |
| <span class="comment">// NSA Guide Step 1: "If r and s are not both integers in the interval |
| // [1, n − 1], output INVALID." |
| </span><span class="kw">let </span>r = scalar_parse_big_endian_variable(public_key_ops.common, limb::AllowZero::No, r)<span class="question-mark">?</span>; |
| <span class="kw">let </span>s = scalar_parse_big_endian_variable(public_key_ops.common, limb::AllowZero::No, s)<span class="question-mark">?</span>; |
| |
| <span class="comment">// NSA Guide Step 4: "Compute w = s**−1 mod n, using the routine in |
| // Appendix B.1." |
| </span><span class="kw">let </span>w = scalar_ops.scalar_inv_to_mont(<span class="kw-2">&</span>s); |
| |
| <span class="comment">// NSA Guide Step 5: "Compute u1 = (e * w) mod n, and compute |
| // u2 = (r * w) mod n." |
| </span><span class="kw">let </span>u1 = scalar_ops.scalar_product(<span class="kw-2">&</span>e, <span class="kw-2">&</span>w); |
| <span class="kw">let </span>u2 = scalar_ops.scalar_product(<span class="kw-2">&</span>r, <span class="kw-2">&</span>w); |
| |
| <span class="comment">// NSA Guide Step 6: "Compute the elliptic curve point |
| // R = (xR, yR) = u1*G + u2*Q, using EC scalar multiplication and EC |
| // addition. If R is equal to the point at infinity, output INVALID." |
| </span><span class="kw">let </span>product = twin_mul(<span class="self">self</span>.ops.private_key_ops, <span class="kw-2">&</span>u1, <span class="kw-2">&</span>u2, <span class="kw-2">&</span>peer_pub_key); |
| |
| <span class="comment">// Verify that the point we computed is on the curve; see |
| // `verify_affine_point_is_on_the_curve_scaled` for details on why. It |
| // would be more secure to do the check on the affine coordinates if we |
| // were going to convert to affine form (again, see |
| // `verify_affine_point_is_on_the_curve_scaled` for details on why). |
| // But, we're going to avoid converting to affine for performance |
| // reasons, so we do the verification using the Jacobian coordinates. |
| </span><span class="kw">let </span>z2 = verify_jacobian_point_is_on_the_curve(public_key_ops.common, <span class="kw-2">&</span>product)<span class="question-mark">?</span>; |
| |
| <span class="comment">// NSA Guide Step 7: "Compute v = xR mod n." |
| // NSA Guide Step 8: "Compare v and r0. If v = r0, output VALID; |
| // otherwise, output INVALID." |
| // |
| // Instead, we use Greg Maxwell's trick to avoid the inversion mod `q` |
| // that would be necessary to compute the affine X coordinate. |
| </span><span class="kw">let </span>x = public_key_ops.common.point_x(<span class="kw-2">&</span>product); |
| <span class="kw">fn </span>sig_r_equals_x( |
| ops: <span class="kw-2">&</span>PublicScalarOps, |
| r: <span class="kw-2">&</span>Elem<Unencoded>, |
| x: <span class="kw-2">&</span>Elem<R>, |
| z2: <span class="kw-2">&</span>Elem<R>, |
| ) -> bool { |
| <span class="kw">let </span>cops = ops.public_key_ops.common; |
| <span class="kw">let </span>r_jacobian = cops.elem_product(z2, r); |
| <span class="kw">let </span>x = cops.elem_unencoded(x); |
| ops.elem_equals(<span class="kw-2">&</span>r_jacobian, <span class="kw-2">&</span>x) |
| } |
| <span class="kw">let </span>r = <span class="self">self</span>.ops.scalar_as_elem(<span class="kw-2">&</span>r); |
| <span class="kw">if </span>sig_r_equals_x(<span class="self">self</span>.ops, <span class="kw-2">&</span>r, <span class="kw-2">&</span>x, <span class="kw-2">&</span>z2) { |
| <span class="kw">return </span><span class="prelude-val">Ok</span>(()); |
| } |
| <span class="kw">if </span><span class="self">self</span>.ops.elem_less_than(<span class="kw-2">&</span>r, <span class="kw-2">&</span><span class="self">self</span>.ops.q_minus_n) { |
| <span class="kw">let </span>r_plus_n = <span class="self">self</span>.ops.elem_sum(<span class="kw-2">&</span>r, <span class="kw-2">&</span>public_key_ops.common.n); |
| <span class="kw">if </span>sig_r_equals_x(<span class="self">self</span>.ops, <span class="kw-2">&</span>r_plus_n, <span class="kw-2">&</span>x, <span class="kw-2">&</span>z2) { |
| <span class="kw">return </span><span class="prelude-val">Ok</span>(()); |
| } |
| } |
| |
| <span class="prelude-val">Err</span>(error::Unspecified) |
| } |
| } |
| |
| <span class="kw">impl </span>sealed::Sealed <span class="kw">for </span>EcdsaVerificationAlgorithm {} |
| |
| <span class="kw">fn </span>split_rs_fixed<<span class="lifetime">'a</span>>( |
| ops: <span class="kw-2">&</span><span class="lifetime">'static </span>ScalarOps, |
| input: <span class="kw-2">&mut </span>untrusted::Reader<<span class="lifetime">'a</span>>, |
| ) -> <span class="prelude-ty">Result</span><(untrusted::Input<<span class="lifetime">'a</span>>, untrusted::Input<<span class="lifetime">'a</span>>), error::Unspecified> { |
| <span class="kw">let </span>scalar_len = ops.scalar_bytes_len(); |
| <span class="kw">let </span>r = input.read_bytes(scalar_len)<span class="question-mark">?</span>; |
| <span class="kw">let </span>s = input.read_bytes(scalar_len)<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>((r, s)) |
| } |
| |
| <span class="kw">fn </span>split_rs_asn1<<span class="lifetime">'a</span>>( |
| _ops: <span class="kw-2">&</span><span class="lifetime">'static </span>ScalarOps, |
| input: <span class="kw-2">&mut </span>untrusted::Reader<<span class="lifetime">'a</span>>, |
| ) -> <span class="prelude-ty">Result</span><(untrusted::Input<<span class="lifetime">'a</span>>, untrusted::Input<<span class="lifetime">'a</span>>), error::Unspecified> { |
| der::nested(input, der::Tag::Sequence, error::Unspecified, |input| { |
| <span class="kw">let </span>r = der::positive_integer(input)<span class="question-mark">?</span>.big_endian_without_leading_zero_as_input(); |
| <span class="kw">let </span>s = der::positive_integer(input)<span class="question-mark">?</span>.big_endian_without_leading_zero_as_input(); |
| <span class="prelude-val">Ok</span>((r, s)) |
| }) |
| } |
| |
| <span class="kw">fn </span>twin_mul( |
| ops: <span class="kw-2">&</span>PrivateKeyOps, |
| g_scalar: <span class="kw-2">&</span>Scalar, |
| p_scalar: <span class="kw-2">&</span>Scalar, |
| p_xy: <span class="kw-2">&</span>(Elem<R>, Elem<R>), |
| ) -> Point { |
| <span class="comment">// XXX: Inefficient. TODO: implement interleaved wNAF multiplication. |
| </span><span class="kw">let </span>scaled_g = ops.point_mul_base(g_scalar); |
| <span class="kw">let </span>scaled_p = ops.point_mul(p_scalar, p_xy); |
| ops.common.point_sum(<span class="kw-2">&</span>scaled_g, <span class="kw-2">&</span>scaled_p) |
| } |
| |
| <span class="doccomment">/// Verification of fixed-length (PKCS#11 style) ECDSA signatures using the |
| /// P-256 curve and SHA-256. |
| /// |
| /// See "`ECDSA_*_FIXED` Details" in `ring::signature`'s module-level |
| /// documentation for more details. |
| </span><span class="kw">pub static </span>ECDSA_P256_SHA256_FIXED: EcdsaVerificationAlgorithm = EcdsaVerificationAlgorithm { |
| ops: <span class="kw-2">&</span>p256::PUBLIC_SCALAR_OPS, |
| digest_alg: <span class="kw-2">&</span>digest::SHA256, |
| split_rs: split_rs_fixed, |
| id: AlgorithmID::ECDSA_P256_SHA256_FIXED, |
| }; |
| |
| <span class="doccomment">/// Verification of fixed-length (PKCS#11 style) ECDSA signatures using the |
| /// P-384 curve and SHA-384. |
| /// |
| /// See "`ECDSA_*_FIXED` Details" in `ring::signature`'s module-level |
| /// documentation for more details. |
| </span><span class="kw">pub static </span>ECDSA_P384_SHA384_FIXED: EcdsaVerificationAlgorithm = EcdsaVerificationAlgorithm { |
| ops: <span class="kw-2">&</span>p384::PUBLIC_SCALAR_OPS, |
| digest_alg: <span class="kw-2">&</span>digest::SHA384, |
| split_rs: split_rs_fixed, |
| id: AlgorithmID::ECDSA_P384_SHA384_FIXED, |
| }; |
| |
| <span class="doccomment">/// Verification of ASN.1 DER-encoded ECDSA signatures using the P-256 curve |
| /// and SHA-256. |
| /// |
| /// See "`ECDSA_*_ASN1` Details" in `ring::signature`'s module-level |
| /// documentation for more details. |
| </span><span class="kw">pub static </span>ECDSA_P256_SHA256_ASN1: EcdsaVerificationAlgorithm = EcdsaVerificationAlgorithm { |
| ops: <span class="kw-2">&</span>p256::PUBLIC_SCALAR_OPS, |
| digest_alg: <span class="kw-2">&</span>digest::SHA256, |
| split_rs: split_rs_asn1, |
| id: AlgorithmID::ECDSA_P256_SHA256_ASN1, |
| }; |
| |
| <span class="doccomment">/// *Not recommended*. Verification of ASN.1 DER-encoded ECDSA signatures using |
| /// the P-256 curve and SHA-384. |
| /// |
| /// In most situations, P-256 should be used only with SHA-256 and P-384 |
| /// should be used only with SHA-384. However, in some cases, particularly TLS |
| /// on the web, it is necessary to support P-256 with SHA-384 for compatibility |
| /// with widely-deployed implementations that do not follow these guidelines. |
| /// |
| /// See "`ECDSA_*_ASN1` Details" in `ring::signature`'s module-level |
| /// documentation for more details. |
| </span><span class="kw">pub static </span>ECDSA_P256_SHA384_ASN1: EcdsaVerificationAlgorithm = EcdsaVerificationAlgorithm { |
| ops: <span class="kw-2">&</span>p256::PUBLIC_SCALAR_OPS, |
| digest_alg: <span class="kw-2">&</span>digest::SHA384, |
| split_rs: split_rs_asn1, |
| id: AlgorithmID::ECDSA_P256_SHA384_ASN1, |
| }; |
| |
| <span class="doccomment">/// *Not recommended*. Verification of ASN.1 DER-encoded ECDSA signatures using |
| /// the P-384 curve and SHA-256. |
| /// |
| /// In most situations, P-256 should be used only with SHA-256 and P-384 |
| /// should be used only with SHA-384. However, in some cases, particularly TLS |
| /// on the web, it is necessary to support P-256 with SHA-384 for compatibility |
| /// with widely-deployed implementations that do not follow these guidelines. |
| /// |
| /// See "`ECDSA_*_ASN1` Details" in `ring::signature`'s module-level |
| /// documentation for more details. |
| </span><span class="kw">pub static </span>ECDSA_P384_SHA256_ASN1: EcdsaVerificationAlgorithm = EcdsaVerificationAlgorithm { |
| ops: <span class="kw-2">&</span>p384::PUBLIC_SCALAR_OPS, |
| digest_alg: <span class="kw-2">&</span>digest::SHA256, |
| split_rs: split_rs_asn1, |
| id: AlgorithmID::ECDSA_P384_SHA256_ASN1, |
| }; |
| |
| <span class="doccomment">/// Verification of ASN.1 DER-encoded ECDSA signatures using the P-384 curve |
| /// and SHA-384. |
| /// |
| /// See "`ECDSA_*_ASN1` Details" in `ring::signature`'s module-level |
| /// documentation for more details. |
| </span><span class="kw">pub static </span>ECDSA_P384_SHA384_ASN1: EcdsaVerificationAlgorithm = EcdsaVerificationAlgorithm { |
| ops: <span class="kw-2">&</span>p384::PUBLIC_SCALAR_OPS, |
| digest_alg: <span class="kw-2">&</span>digest::SHA384, |
| split_rs: split_rs_asn1, |
| id: AlgorithmID::ECDSA_P384_SHA384_ASN1, |
| }; |
| |
| <span class="attribute">#[cfg(test)] |
| </span><span class="kw">mod </span>tests { |
| <span class="kw">use super</span>::<span class="kw-2">*</span>; |
| <span class="kw">use </span><span class="kw">crate</span>::test; |
| <span class="kw">use </span>alloc::vec::Vec; |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_digest_based_test_vectors() { |
| test::run( |
| <span class="macro">test_file!</span>(<span class="string">"../../../../crypto/fipsmodule/ecdsa/ecdsa_verify_tests.txt"</span>), |
| |section, test_case| { |
| <span class="macro">assert_eq!</span>(section, <span class="string">""</span>); |
| |
| <span class="kw">let </span>curve_name = test_case.consume_string(<span class="string">"Curve"</span>); |
| |
| <span class="kw">let </span>public_key = { |
| <span class="kw">let </span><span class="kw-2">mut </span>public_key = Vec::new(); |
| public_key.push(<span class="number">0x04</span>); |
| public_key.extend(<span class="kw-2">&</span>test_case.consume_bytes(<span class="string">"X"</span>)); |
| public_key.extend(<span class="kw-2">&</span>test_case.consume_bytes(<span class="string">"Y"</span>)); |
| public_key |
| }; |
| |
| <span class="kw">let </span>digest = test_case.consume_bytes(<span class="string">"Digest"</span>); |
| |
| <span class="kw">let </span>sig = { |
| <span class="kw">let </span><span class="kw-2">mut </span>sig = Vec::new(); |
| sig.extend(<span class="kw-2">&</span>test_case.consume_bytes(<span class="string">"R"</span>)); |
| sig.extend(<span class="kw-2">&</span>test_case.consume_bytes(<span class="string">"S"</span>)); |
| sig |
| }; |
| |
| <span class="kw">let </span>invalid = test_case.consume_optional_string(<span class="string">"Invalid"</span>); |
| |
| <span class="kw">let </span>alg = <span class="kw">match </span>curve_name.as_str() { |
| <span class="string">"P-256" </span>=> <span class="kw-2">&</span>ECDSA_P256_SHA256_FIXED, |
| <span class="string">"P-384" </span>=> <span class="kw-2">&</span>ECDSA_P384_SHA384_FIXED, |
| <span class="kw">_ </span>=> { |
| <span class="macro">panic!</span>(<span class="string">"Unsupported curve: {}"</span>, curve_name); |
| } |
| }; |
| |
| <span class="kw">let </span>digest = <span class="kw">super</span>::<span class="kw">super</span>::digest_scalar::digest_bytes_scalar( |
| <span class="kw-2">&</span>alg.ops.scalar_ops, |
| <span class="kw-2">&</span>digest[..], |
| ); |
| <span class="kw">let </span>actual_result = alg.verify_digest( |
| untrusted::Input::from(<span class="kw-2">&</span>public_key[..]), |
| digest, |
| untrusted::Input::from(<span class="kw-2">&</span>sig[..]), |
| ); |
| <span class="macro">assert_eq!</span>(actual_result.is_ok(), invalid.is_none()); |
| |
| <span class="prelude-val">Ok</span>(()) |
| }, |
| ); |
| } |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../../../../" data-current-crate="ring" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
