From 4d607f17ea3eb38ed9f7703afd423f6055c686d4 Mon Sep 17 00:00:00 2001 From: schwarze <> Date: Thu, 3 Nov 2016 09:35:34 +0000 Subject: convert EVP manuals from pod to mdoc --- src/lib/libcrypto/doc/EVP_VerifyInit.pod | 96 -------------------------------- 1 file changed, 96 deletions(-) delete mode 100644 src/lib/libcrypto/doc/EVP_VerifyInit.pod (limited to 'src/lib/libcrypto/doc/EVP_VerifyInit.pod') diff --git a/src/lib/libcrypto/doc/EVP_VerifyInit.pod b/src/lib/libcrypto/doc/EVP_VerifyInit.pod deleted file mode 100644 index b0d3f8e4c9..0000000000 --- a/src/lib/libcrypto/doc/EVP_VerifyInit.pod +++ /dev/null @@ -1,96 +0,0 @@ -=pod - -=head1 NAME - -EVP_VerifyInit, EVP_VerifyUpdate, EVP_VerifyFinal - EVP signature verification -functions - -=head1 SYNOPSIS - - #include - - int EVP_VerifyInit_ex(EVP_MD_CTX *ctx, const EVP_MD *type, ENGINE *impl); - int EVP_VerifyUpdate(EVP_MD_CTX *ctx, const void *d, unsigned int cnt); - int EVP_VerifyFinal(EVP_MD_CTX *ctx,unsigned char *sigbuf, unsigned int siglen,EVP_PKEY *pkey); - - int EVP_VerifyInit(EVP_MD_CTX *ctx, const EVP_MD *type); - -=head1 DESCRIPTION - -The EVP signature verification routines are a high level interface to digital -signatures. - -EVP_VerifyInit_ex() sets up verification context B to use digest -B from ENGINE B. B must be initialized by calling -EVP_MD_CTX_init() before calling this function. - -EVP_VerifyUpdate() hashes B bytes of data at B into the -verification context B. This function can be called several times on the -same B to include additional data. - -EVP_VerifyFinal() verifies the data in B using the public key B -and against the B bytes at B. - -EVP_VerifyInit() initializes verification context B to use the default -implementation of digest B. - -=head1 RETURN VALUES - -EVP_VerifyInit_ex() and EVP_VerifyUpdate() return 1 for success and 0 for -failure. - -EVP_VerifyFinal() returns 1 for a correct signature, 0 for failure and -1 if -some other error occurred. - -The error codes can be obtained by L. - -=head1 NOTES - -The B interface to digital signatures should almost always be used in -preference to the low level interfaces. This is because the code then becomes -transparent to the algorithm used and much more flexible. - -Due to the link between message digests and public key algorithms the correct -digest algorithm must be used with the correct public key type. A list of -algorithms and associated public key algorithms appears in -L. - -The call to EVP_VerifyFinal() internally finalizes a copy of the digest context. -This means that calls to EVP_VerifyUpdate() and EVP_VerifyFinal() can be called -later to digest and verify additional data. - -Since only a copy of the digest context is ever finalized the context must -be cleaned up after use by calling EVP_MD_CTX_cleanup() or a memory leak -will occur. - -=head1 BUGS - -Older versions of this documentation wrongly stated that calls to -EVP_VerifyUpdate() could not be made after calling EVP_VerifyFinal(). - -Since the public key is passed in the call to EVP_SignFinal() any error -relating to the private key (for example an unsuitable key and digest -combination) will not be indicated until after potentially large amounts of -data have been passed through EVP_SignUpdate(). - -It is not possible to change the signing parameters using these function. - -The previous two bugs are fixed in the newer EVP_VerifyDigest*() function. - -=head1 SEE ALSO - -L, -L, -L, L, -L, L, L, -L, L, -L, L - -=head1 HISTORY - -EVP_VerifyInit(), EVP_VerifyUpdate() and EVP_VerifyFinal() are -available in all versions of SSLeay and OpenSSL. - -EVP_VerifyInit_ex() was added in OpenSSL 0.9.7 - -=cut -- cgit v1.2.3-55-g6feb