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Diffstat (limited to 'secure/lib/libcrypto/man/man7/EVP_SIGNATURE-DSA.7')
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diff --git a/secure/lib/libcrypto/man/man7/EVP_SIGNATURE-DSA.7 b/secure/lib/libcrypto/man/man7/EVP_SIGNATURE-DSA.7 new file mode 100644 index 000000000000..e77ed38d5a61 --- /dev/null +++ b/secure/lib/libcrypto/man/man7/EVP_SIGNATURE-DSA.7 @@ -0,0 +1,168 @@ +.\" -*- mode: troff; coding: utf-8 -*- +.\" Automatically generated by Pod::Man 5.0102 (Pod::Simple 3.45) +.\" +.\" Standard preamble: +.\" ======================================================================== +.de Sp \" Vertical space (when we can't use .PP) +.if t .sp .5v +.if n .sp +.. +.de Vb \" Begin verbatim text +.ft CW +.nf +.ne \\$1 +.. +.de Ve \" End verbatim text +.ft R +.fi +.. +.\" \*(C` and \*(C' are quotes in nroff, nothing in troff, for use with C<>. +.ie n \{\ +. ds C` "" +. ds C' "" +'br\} +.el\{\ +. ds C` +. ds C' +'br\} +.\" +.\" Escape single quotes in literal strings from groff's Unicode transform. +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" +.\" If the F register is >0, we'll generate index entries on stderr for +.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index +.\" entries marked with X<> in POD. Of course, you'll have to process the +.\" output yourself in some meaningful fashion. +.\" +.\" Avoid warning from groff about undefined register 'F'. +.de IX +.. +.nr rF 0 +.if \n(.g .if rF .nr rF 1 +.if (\n(rF:(\n(.g==0)) \{\ +. if \nF \{\ +. de IX +. tm Index:\\$1\t\\n%\t"\\$2" +.. +. if !\nF==2 \{\ +. nr % 0 +. nr F 2 +. \} +. \} +.\} +.rr rF +.\" ======================================================================== +.\" +.IX Title "EVP_SIGNATURE-DSA 7ossl" +.TH EVP_SIGNATURE-DSA 7ossl 2025-09-30 3.5.4 OpenSSL +.\" For nroff, turn off justification. Always turn off hyphenation; it makes +.\" way too many mistakes in technical documents. +.if n .ad l +.nh +.SH NAME +EVP_SIGNATURE\-DSA +\&\- The EVP_PKEY DSA signature implementation +.SH DESCRIPTION +.IX Header "DESCRIPTION" +Support for computing DSA signatures. The signature produced with +\&\fBEVP_PKEY_sign\fR\|(3) is DER encoded ASN.1 in the form described in +RFC 3279, section 2.2.2. +See \fBEVP_PKEY\-DSA\fR\|(7) for information related to DSA keys. +.PP +As part of FIPS 140\-3 DSA is not longer FIPS approved for key generation and +signature validation, but is still allowed for signature verification. +.SS "Algorithm Names" +.IX Subsection "Algorithm Names" +In this list, names are grouped together to signify that they are the same +algorithm having multiple names. This also includes the OID in canonical +decimal form (which means that they are possible to fetch if the caller has a +mere OID which came out in this form after a call to \fBOBJ_obj2txt\fR\|(3)). +.IP """DSA"", ""dsaEncryption"", ""1.2.840.10040.4.1""" 4 +.IX Item """DSA"", ""dsaEncryption"", ""1.2.840.10040.4.1""" +The base signature algorithm, supported explicitly fetched with +\&\fBEVP_PKEY_sign_init_ex2\fR\|(3), and implicitly fetched (through +EC keys) with \fBEVP_DigestSignInit\fR\|(3) and +\&\fBEVP_DigestVerifyInit\fR\|(3). +.Sp +It can't be used with \fBEVP_PKEY_sign_message_init\fR\|(3) +.IP """DSA\-SHA1"", ""DSA\-SHA\-1"", ""dsaWithSHA1"", ""1.2.840.10040.4.3""" 4 +.IX Item """DSA-SHA1"", ""DSA-SHA-1"", ""dsaWithSHA1"", ""1.2.840.10040.4.3""" +.PD 0 +.IP """DSA\-SHA2\-224"", ""DSA\-SHA224"", ""dsa_with_SHA224"", ""2.16.840.1.101.3.4.3.1""" 4 +.IX Item """DSA-SHA2-224"", ""DSA-SHA224"", ""dsa_with_SHA224"", ""2.16.840.1.101.3.4.3.1""" +.IP """DSA\-SHA2\-256"", ""DSA\-SHA256"", ""dsa_with_SHA256"", ""2.16.840.1.101.3.4.3.2""" 4 +.IX Item """DSA-SHA2-256"", ""DSA-SHA256"", ""dsa_with_SHA256"", ""2.16.840.1.101.3.4.3.2""" +.IP """DSA\-SHA2\-384"", ""DSA\-SHA384"", ""dsa_with_SHA384"", ""id\-dsa\-with\-sha384"", ""1.2.840.1.101.3.4.3.3""" 4 +.IX Item """DSA-SHA2-384"", ""DSA-SHA384"", ""dsa_with_SHA384"", ""id-dsa-with-sha384"", ""1.2.840.1.101.3.4.3.3""" +.IP """DSA\-SHA2\-512"", ""DSA\-SHA512"", ""dsa_with_SHA512"", ""id\-dsa\-with\-sha512"", ""1.2.840.1.101.3.4.3.4""" 4 +.IX Item """DSA-SHA2-512"", ""DSA-SHA512"", ""dsa_with_SHA512"", ""id-dsa-with-sha512"", ""1.2.840.1.101.3.4.3.4""" +.IP """DSA\-SHA3\-224"", ""dsa_with_SHA3\-224"", ""id\-dsa\-with\-sha3\-224"", ""2.16.840.1.101.3.4.3.5""" 4 +.IX Item """DSA-SHA3-224"", ""dsa_with_SHA3-224"", ""id-dsa-with-sha3-224"", ""2.16.840.1.101.3.4.3.5""" +.IP """DSA\-SHA3\-256"", ""dsa_with_SHA3\-256"", ""id\-dsa\-with\-sha3\-256"", ""2.16.840.1.101.3.4.3.6""" 4 +.IX Item """DSA-SHA3-256"", ""dsa_with_SHA3-256"", ""id-dsa-with-sha3-256"", ""2.16.840.1.101.3.4.3.6""" +.IP """DSA\-SHA3\-384"", ""dsa_with_SHA3\-384"", ""id\-dsa\-with\-sha3\-384"", ""2.16.840.1.101.3.4.3.7""" 4 +.IX Item """DSA-SHA3-384"", ""dsa_with_SHA3-384"", ""id-dsa-with-sha3-384"", ""2.16.840.1.101.3.4.3.7""" +.IP """DSA\-SHA3\-512"", ""dsa_with_SHA3\-512"", ""id\-dsa\-with\-sha3\-512"", ""2.16.840.1.101.3.4.3.8""" 4 +.IX Item """DSA-SHA3-512"", ""dsa_with_SHA3-512"", ""id-dsa-with-sha3-512"", ""2.16.840.1.101.3.4.3.8""" +.PD +DSA signature schemes with diverse message digest algorithms. They are all +supported explicitly fetched with \fBEVP_PKEY_sign_init_ex2\fR\|(3) and +\&\fBEVP_PKEY_sign_message_init\fR\|(3). +.SS "Signature Parameters" +.IX Subsection "Signature Parameters" +The following signature parameters can be set using \fBEVP_PKEY_CTX_set_params()\fR. +This may be called after \fBEVP_PKEY_sign_init()\fR or \fBEVP_PKEY_verify_init()\fR, +and before calling \fBEVP_PKEY_sign()\fR or \fBEVP_PKEY_verify()\fR. They may also be set +using \fBEVP_PKEY_sign_init_ex()\fR or \fBEVP_PKEY_verify_init_ex()\fR. +.IP """digest"" (\fBOSSL_SIGNATURE_PARAM_DIGEST\fR) <UTF8 string>" 4 +.IX Item """digest"" (OSSL_SIGNATURE_PARAM_DIGEST) <UTF8 string>" +.PD 0 +.IP """properties"" (\fBOSSL_SIGNATURE_PARAM_PROPERTIES\fR) <UTF8 string>" 4 +.IX Item """properties"" (OSSL_SIGNATURE_PARAM_PROPERTIES) <UTF8 string>" +.PD +These two are not supported with the DSA signature schemes that already +include a message digest algorithm, See "Algorithm Names" above. +.IP """nonce-type"" (\fBOSSL_SIGNATURE_PARAM_NONCE_TYPE\fR) <unsigned integer>" 4 +.IX Item """nonce-type"" (OSSL_SIGNATURE_PARAM_NONCE_TYPE) <unsigned integer>" +.PD 0 +.IP """key-check"" (\fBOSSL_SIGNATURE_PARAM_FIPS_KEY_CHECK\fR) <integer>" 4 +.IX Item """key-check"" (OSSL_SIGNATURE_PARAM_FIPS_KEY_CHECK) <integer>" +.IP """digest-check"" (\fBOSSL_SIGNATURE_PARAM_FIPS_DIGEST_CHECK\fR) <integer>" 4 +.IX Item """digest-check"" (OSSL_SIGNATURE_PARAM_FIPS_DIGEST_CHECK) <integer>" +.IP """sign-check"" (\fBOSSL_SIGNATURE_PARAM_FIPS_SIGN_CHECK\fR) <int>" 4 +.IX Item """sign-check"" (OSSL_SIGNATURE_PARAM_FIPS_SIGN_CHECK) <int>" +.PD +The settable parameters are described in \fBprovider\-signature\fR\|(7). +.PP +The following signature parameters can be retrieved using +\&\fBEVP_PKEY_CTX_get_params()\fR. +.IP """algorithm-id"" (\fBOSSL_SIGNATURE_PARAM_ALGORITHM_ID\fR) <octet string>" 4 +.IX Item """algorithm-id"" (OSSL_SIGNATURE_PARAM_ALGORITHM_ID) <octet string>" +.PD 0 +.IP """digest"" (\fBOSSL_SIGNATURE_PARAM_DIGEST\fR) <UTF8 string>" 4 +.IX Item """digest"" (OSSL_SIGNATURE_PARAM_DIGEST) <UTF8 string>" +.IP """nonce-type"" (\fBOSSL_SIGNATURE_PARAM_NONCE_TYPE\fR) <unsigned integer>" 4 +.IX Item """nonce-type"" (OSSL_SIGNATURE_PARAM_NONCE_TYPE) <unsigned integer>" +.IP """fips-indicator"" (\fBOSSL_SIGNATURE_PARAM_FIPS_APPROVED_INDICATOR\fR) <integer>" 4 +.IX Item """fips-indicator"" (OSSL_SIGNATURE_PARAM_FIPS_APPROVED_INDICATOR) <integer>" +.PD +The gettable parameters are described in \fBprovider\-signature\fR\|(7). +.SH "SEE ALSO" +.IX Header "SEE ALSO" +\&\fBEVP_PKEY_CTX_set_params\fR\|(3), +\&\fBEVP_PKEY_sign\fR\|(3), +\&\fBEVP_PKEY_verify\fR\|(3), +\&\fBprovider\-signature\fR\|(7), +.SH HISTORY +.IX Header "HISTORY" +DSA Key generation and signature generation are no longer FIPS approved in +OpenSSL 3.4. See "FIPS indicators" in \fBfips_module\fR\|(7) for more information. +.SH COPYRIGHT +.IX Header "COPYRIGHT" +Copyright 2020\-2024 The OpenSSL Project Authors. All Rights Reserved. +.PP +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 +<https://www.openssl.org/source/license.html>. |