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Diffstat (limited to 'secure/lib/libcrypto/man/EVP_PKEY_cmp.3')
-rw-r--r-- | secure/lib/libcrypto/man/EVP_PKEY_cmp.3 | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/secure/lib/libcrypto/man/EVP_PKEY_cmp.3 b/secure/lib/libcrypto/man/EVP_PKEY_cmp.3 new file mode 100644 index 0000000..98d8fda --- /dev/null +++ b/secure/lib/libcrypto/man/EVP_PKEY_cmp.3 @@ -0,0 +1,184 @@ +.\" Automatically generated by Pod::Man 2.25 (Pod::Simple 3.23) +.\" +.\" 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 +.. +.\" Set up some character translations and predefined strings. \*(-- will +.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left +.\" double quote, and \*(R" will give a right double quote. \*(C+ will +.\" give a nicer C++. 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Always turn off hyphenation; it makes +.\" way too many mistakes in technical documents. +.if n .ad l +.nh +.SH "NAME" +EVP_PKEY_copy_parameters, EVP_PKEY_missing_parameters, EVP_PKEY_cmp_parameters, EVP_PKEY_cmp \- public key parameter and comparison functions +.SH "SYNOPSIS" +.IX Header "SYNOPSIS" +.Vb 1 +\& #include <openssl/evp.h> +\& +\& int EVP_PKEY_missing_parameters(const EVP_PKEY *pkey); +\& int EVP_PKEY_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from); +\& +\& int EVP_PKEY_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b); +\& int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b); +.Ve +.SH "DESCRIPTION" +.IX Header "DESCRIPTION" +The function \fIEVP_PKEY_missing_parameters()\fR returns 1 if the public key +parameters of \fBpkey\fR are missing and 0 if they are present or the algorithm +doesn't use parameters. +.PP +The function \fIEVP_PKEY_copy_parameters()\fR copies the parameters from key +\&\fBfrom\fR to key \fBto\fR. +.PP +The funcion \fIEVP_PKEY_cmp_parameters()\fR compares the parameters of keys +\&\fBa\fR and \fBb\fR. +.PP +The funcion \fIEVP_PKEY_cmp()\fR compares the public key components and paramters +(if present) of keys \fBa\fR and \fBb\fR. +.SH "NOTES" +.IX Header "NOTES" +The main purpose of the functions \fIEVP_PKEY_missing_parameters()\fR and +\&\fIEVP_PKEY_copy_parameters()\fR is to handle public keys in certificates where the +parameters are sometimes omitted from a public key if they are inherited from +the \s-1CA\s0 that signed it. +.PP +Since OpenSSL private keys contain public key components too the function +\&\fIEVP_PKEY_cmp()\fR can also be used to determine if a private key matches +a public key. +.SH "RETURN VALUES" +.IX Header "RETURN VALUES" +The function \fIEVP_PKEY_missing_parameters()\fR returns 1 if the public key +parameters of \fBpkey\fR are missing and 0 if they are present or the algorithm +doesn't use parameters. +.PP +These functions \fIEVP_PKEY_copy_parameters()\fR returns 1 for success and 0 for +failure. +.PP +The function \fIEVP_PKEY_cmp_parameters()\fR and \fIEVP_PKEY_cmp()\fR return 1 if the +keys match, 0 if they don't match, \-1 if the key types are different and +\&\-2 if the operation is not supported. +.SH "SEE ALSO" +.IX Header "SEE ALSO" +\&\fIEVP_PKEY_CTX_new\fR\|(3), +\&\fIEVP_PKEY_keygen\fR\|(3) |