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.
186 lines
5.1 KiB
Groff
186 lines
5.1 KiB
Groff
.\" $NetBSD: openssl_evp.3,v 1.8 2003/07/24 14:16:51 itojun Exp $
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.\" ======================================================================
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.\"
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.IX Title "evp 3"
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.TH evp 3 "0.9.7b" "2002-08-06" "OpenSSL"
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.UC
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.SH "NAME"
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evp \- high-level cryptographic functions
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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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.Vb 1
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\& #include <openssl/evp.h>
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.Ve
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.SH "DESCRIPTION"
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.IX Header "DESCRIPTION"
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The \s-1EVP\s0 library provides a high-level interface to cryptographic
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functions.
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.PP
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\&\fBEVP_Seal\fR\fI...\fR and \fBEVP_Open\fR\fI...\fR provide public key encryption
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and decryption to implement digital \*(L"envelopes\*(R".
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.PP
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The \fBEVP_Sign\fR\fI...\fR and \fBEVP_Verify\fR\fI...\fR functions implement
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digital signatures.
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.PP
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Symmetric encryption is available with the \fBEVP_Encrypt\fR\fI...\fR
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functions. The \fBEVP_Digest\fR\fI...\fR functions provide message digests.
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.PP
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Algorithms are loaded with \fIOpenSSL_add_all_algorithms\fR\|(3).
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.PP
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All the symmetric algorithms (ciphers) and digests can be replaced by \s-1ENGINE\s0
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modules providing alternative implementations. If \s-1ENGINE\s0 implementations of
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ciphers or digests are registered as defaults, then the various \s-1EVP\s0 functions
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will automatically use those implementations automatically in preference to
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built in software implementations. For more information, consult the \fIengine\fR\|(3)
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man page.
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.SH "SEE ALSO"
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.IX Header "SEE ALSO"
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EVP_DigestInit(3),
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EVP_EncryptInit(3),
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EVP_OpenInit(3),
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EVP_SealInit(3),
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EVP_SignInit(3),
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EVP_VerifyInit(3),
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OpenSSL_add_all_algorithms(3),
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engine(3)
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