diff options
Diffstat (limited to 'crypto/openssl/doc/man3/EVP_SignInit.pod')
| -rw-r--r-- | crypto/openssl/doc/man3/EVP_SignInit.pod | 44 |
1 files changed, 15 insertions, 29 deletions
diff --git a/crypto/openssl/doc/man3/EVP_SignInit.pod b/crypto/openssl/doc/man3/EVP_SignInit.pod index c26b7f7d5d220..22ce747d333f7 100644 --- a/crypto/openssl/doc/man3/EVP_SignInit.pod +++ b/crypto/openssl/doc/man3/EVP_SignInit.pod @@ -2,10 +2,8 @@ =head1 NAME -EVP_PKEY_size, -EVP_SignInit, EVP_SignInit_ex, EVP_SignUpdate, EVP_SignFinal, -EVP_PKEY_security_bits - EVP signing -functions +EVP_SignInit, EVP_SignInit_ex, EVP_SignUpdate, EVP_SignFinal +- EVP signing functions =head1 SYNOPSIS @@ -17,49 +15,36 @@ functions void EVP_SignInit(EVP_MD_CTX *ctx, const EVP_MD *type); - int EVP_PKEY_size(const EVP_PKEY *pkey); - int EVP_PKEY_security_bits(const EVP_PKEY *pkey); - =head1 DESCRIPTION The EVP signature routines are a high level interface to digital signatures. -EVP_SignInit_ex() sets up signing context B<ctx> to use digest -B<type> from ENGINE B<impl>. B<ctx> must be created with +EVP_SignInit_ex() sets up signing context I<ctx> to use digest +I<type> from B<ENGINE> I<impl>. I<ctx> must be created with EVP_MD_CTX_new() before calling this function. -EVP_SignUpdate() hashes B<cnt> bytes of data at B<d> into the -signature context B<ctx>. This function can be called several times on the -same B<ctx> to include additional data. +EVP_SignUpdate() hashes I<cnt> bytes of data at I<d> into the +signature context I<ctx>. This function can be called several times on the +same I<ctx> to include additional data. -EVP_SignFinal() signs the data in B<ctx> using the private key B<pkey> and -places the signature in B<sig>. B<sig> must be at least EVP_PKEY_size(pkey) -bytes in size. B<s> is an OUT parameter, and not used as an IN parameter. +EVP_SignFinal() signs the data in I<ctx> using the private key I<pkey> and +places the signature in I<sig>. I<sig> must be at least C<EVP_PKEY_size(pkey)> +bytes in size. I<s> is an OUT parameter, and not used as an IN parameter. The number of bytes of data written (i.e. the length of the signature) -will be written to the integer at B<s>, at most EVP_PKEY_size(pkey) bytes +will be written to the integer at I<s>, at most C<EVP_PKEY_size(pkey)> bytes will be written. -EVP_SignInit() initializes a signing context B<ctx> to use the default -implementation of digest B<type>. - -EVP_PKEY_size() returns the maximum size of a signature in bytes. The actual -signature returned by EVP_SignFinal() may be smaller. - -EVP_PKEY_security_bits() returns the number of security bits of the given B<pkey>, -bits of security is defined in NIST SP800-57. +EVP_SignInit() initializes a signing context I<ctx> to use the default +implementation of digest I<type>. =head1 RETURN VALUES EVP_SignInit_ex(), EVP_SignUpdate() and EVP_SignFinal() return 1 for success and 0 for failure. -EVP_PKEY_size() returns the maximum size of a signature in bytes. - The error codes can be obtained by L<ERR_get_error(3)>. -EVP_PKEY_security_bits() returns the number of security bits. - =head1 NOTES The B<EVP> interface to digital signatures should almost always be used in @@ -95,6 +80,7 @@ The previous two bugs are fixed in the newer EVP_SignDigest*() function. =head1 SEE ALSO +L<EVP_PKEY_size(3)>, L<EVP_PKEY_bits(3)>, L<EVP_PKEY_security_bits(3)>, L<EVP_VerifyInit(3)>, L<EVP_DigestInit(3)>, L<evp(7)>, L<HMAC(3)>, L<MD2(3)>, @@ -103,7 +89,7 @@ L<SHA1(3)>, L<dgst(1)> =head1 COPYRIGHT -Copyright 2000-2019 The OpenSSL Project Authors. All Rights Reserved. +Copyright 2000-2020 The OpenSSL Project Authors. All Rights Reserved. Licensed under the OpenSSL license (the "License"). You may not use this file except in compliance with the License. You can obtain a copy |