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//opt/alt/openssl11/share/man/man3/RSA_sign_ASN1_OCTET_STRING.3ssl
.\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28) .\" .\" 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" RSA_sign_ASN1_OCTET_STRING, RSA_verify_ASN1_OCTET_STRING \- RSA signatures .SH "SYNOPSIS" .IX Header "SYNOPSIS" .Vb 1 \& #include <openssl/rsa.h> \& \& int RSA_sign_ASN1_OCTET_STRING(int dummy, unsigned char *m, \& unsigned int m_len, unsigned char *sigret, \& unsigned int *siglen, RSA *rsa); \& \& int RSA_verify_ASN1_OCTET_STRING(int dummy, unsigned char *m, \& unsigned int m_len, unsigned char *sigbuf, \& unsigned int siglen, RSA *rsa); .Ve .SH "DESCRIPTION" .IX Header "DESCRIPTION" \&\fIRSA_sign_ASN1_OCTET_STRING()\fR signs the octet string \fBm\fR of size \&\fBm_len\fR using the private key \fBrsa\fR represented in \s-1DER\s0 using \s-1PKCS\s0 #1 padding. It stores the signature in \fBsigret\fR and the signature size in \fBsiglen\fR. \fBsigret\fR must point to \fBRSA_size(rsa)\fR bytes of memory. .PP \&\fBdummy\fR is ignored. .PP The random number generator must be seeded when calling \&\fIRSA_sign_ASN1_OCTET_STRING()\fR. If the automatic seeding or reseeding of the OpenSSL \s-1CSPRNG\s0 fails due to external circumstances (see \s-1\fIRAND\s0\fR\|(7)), the operation will fail. .PP \&\fIRSA_verify_ASN1_OCTET_STRING()\fR verifies that the signature \fBsigbuf\fR of size \fBsiglen\fR is the \s-1DER\s0 representation of a given octet string \&\fBm\fR of size \fBm_len\fR. \fBdummy\fR is ignored. \fBrsa\fR is the signer's public key. .SH "RETURN VALUES" .IX Header "RETURN VALUES" \&\fIRSA_sign_ASN1_OCTET_STRING()\fR returns 1 on success, 0 otherwise. \&\fIRSA_verify_ASN1_OCTET_STRING()\fR returns 1 on successful verification, 0 otherwise. .PP The error codes can be obtained by \fIERR_get_error\fR\|(3). .SH "BUGS" .IX Header "BUGS" These functions serve no recognizable purpose. .SH "SEE ALSO" .IX Header "SEE ALSO" \&\fIERR_get_error\fR\|(3), \&\fIRAND_bytes\fR\|(3), \fIRSA_sign\fR\|(3), \&\fIRSA_verify\fR\|(3), \&\s-1\fIRAND\s0\fR\|(7) .SH "COPYRIGHT" .IX Header "COPYRIGHT" Copyright 2000\-2019 The OpenSSL Project Authors. All Rights Reserved. .PP Licensed under the OpenSSL license (the \*(L"License\*(R"). You may not use this file except in compliance with the License. You can obtain a copy in the file \s-1LICENSE\s0 in the source distribution or at <https://www.openssl.org/source/license.html>.
