f4401cd869
alter des.h to be friendly with openssl/des.h (you can include both in the same file) make libkrb to depend on libdes. bump major. massage various portioin of heimdal to be friendly with openssl 0.9.7b.
194 lines
5.7 KiB
Groff
194 lines
5.7 KiB
Groff
.\" $NetBSD: SMIME_write_PKCS7.3,v 1.1 2003/07/24 14:16:43 itojun Exp $
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.\" Thu Jul 24 13:08:02 2003
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.\" ======================================================================
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.\"
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.IX Title "SMIME_write_PKCS7 3"
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.TH SMIME_write_PKCS7 3 "0.9.7b" "2002-10-19" "OpenSSL"
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.UC
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.SH "NAME"
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SMIME_write_PKCS7 \- convert PKCS#7 structure to S/MIME format.
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.SH "LIBRARY"
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libcrypto, -lcrypto
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.SH "SYNOPSIS"
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.IX Header "SYNOPSIS"
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int SMIME_write_PKCS7(\s-1BIO\s0 *out, \s-1PKCS7\s0 *p7, \s-1BIO\s0 *data, int flags);
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.SH "DESCRIPTION"
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.IX Header "DESCRIPTION"
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\&\fISMIME_write_PKCS7()\fR adds the appropriate \s-1MIME\s0 headers to a PKCS#7
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structure to produce an S/MIME message.
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.PP
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\&\fBout\fR is the \s-1BIO\s0 to write the data to. \fBp7\fR is the appropriate
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\&\fB\s-1PKCS7\s0\fR structure. If cleartext signing (\fBmultipart/signed\fR) is
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being used then the signed data must be supplied in the \fBdata\fR
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argument. \fBflags\fR is an optional set of flags.
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.SH "NOTES"
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.IX Header "NOTES"
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The following flags can be passed in the \fBflags\fR parameter.
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.PP
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If \fB\s-1PKCS7_DETACHED\s0\fR is set then cleartext signing will be used,
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this option only makes sense for signedData where \fB\s-1PKCS7_DETACHED\s0\fR
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is also set when \fIPKCS7_sign()\fR is also called.
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.PP
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If the \fB\s-1PKCS7_TEXT\s0\fR flag is set \s-1MIME\s0 headers for type \fBtext/plain\fR
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are added to the content, this only makes sense if \fB\s-1PKCS7_DETACHED\s0\fR
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is also set.
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.PP
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If cleartext signing is being used then the data must be read twice:
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once to compute the signature in \fIPKCS7_sign()\fR and once to output the
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S/MIME message.
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.SH "BUGS"
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.IX Header "BUGS"
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\&\fISMIME_write_PKCS7()\fR always base64 encodes PKCS#7 structures, there
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should be an option to disable this.
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.PP
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There should really be a way to produce cleartext signing using only
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a single pass of the data.
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.SH "RETURN VALUES"
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.IX Header "RETURN VALUES"
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\&\fISMIME_write_PKCS7()\fR returns 1 for success or 0 for failure.
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.SH "SEE ALSO"
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.IX Header "SEE ALSO"
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ERR_get_error(3), PKCS7_sign(3),
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PKCS7_verify(3), PKCS7_encrypt(3)
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PKCS7_decrypt(3)
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.SH "HISTORY"
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.IX Header "HISTORY"
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\&\fISMIME_write_PKCS7()\fR was added to OpenSSL 0.9.5
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