| =pod |
| |
| =head1 NAME |
| |
| EVP_MD-MD5-SHA1 - The MD5-SHA1 EVP_MD implementation |
| |
| =head1 DESCRIPTION |
| |
| Support for computing MD5-SHA1 digests through the B<EVP_MD> API. |
| |
| MD5-SHA1 is a rather special digest that's used with SSLv3. |
| |
| =head2 Identity |
| |
| This implementation is only available with the default provider, and is |
| identified with the name "MD5-SHA1". |
| |
| =head2 Gettable Parameters |
| |
| This implementation supports the common gettable parameters described |
| in L<EVP_MD-common(7)>. |
| |
| =head2 Settable Context Parameters |
| |
| This implementation supports the following L<OSSL_PARAM(3)> entries, |
| settable for an B<EVP_MD_CTX> with L<EVP_MD_CTX_set_params(3)>: |
| |
| =over 4 |
| |
| =item "ssl3-ms" (B<OSSL_DIGEST_PARAM_SSL3_MS>) <octet string> |
| |
| This parameter is set by libssl in order to calculate a signature hash for an |
| SSLv3 CertificateVerify message as per RFC6101. |
| It is only set after all handshake messages have already been digested via |
| OP_digest_update() calls. |
| The parameter provides the master secret value to be added to the digest. |
| The digest implementation should calculate the complete digest as per RFC6101 |
| section 5.6.8. |
| The next call after setting this parameter should be OP_digest_final(). |
| |
| =back |
| |
| =head1 SEE ALSO |
| |
| L<EVP_MD_CTX_set_params(3)>, L<provider-digest(7)>, L<OSSL_PROVIDER-default(7)> |
| |
| =head1 COPYRIGHT |
| |
| Copyright 2020 The OpenSSL Project Authors. All Rights Reserved. |
| |
| Licensed under the Apache License 2.0 (the "License"). You may not use |
| this file except in compliance with the License. You can obtain a copy |
| in the file LICENSE in the source distribution or at |
| L<https://www.openssl.org/source/license.html>. |
| |
| =cut |
