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- .\" -*- mode: troff; coding: utf-8 -*-
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- .IX Title "EVP_IDEA_CBC 3ossl"
- .TH EVP_IDEA_CBC 3ossl 2025-01-17 3.4.0 OpenSSL
- .\" For nroff, turn off justification. Always turn off hyphenation; it makes
- .\" way too many mistakes in technical documents.
- .if n .ad l
- .nh
- .SH NAME
- EVP_idea_cbc,
- EVP_idea_cfb,
- EVP_idea_cfb64,
- EVP_idea_ecb,
- EVP_idea_ofb
- \&\- EVP IDEA cipher
- .SH SYNOPSIS
- .IX Header "SYNOPSIS"
- .Vb 1
- \& #include <openssl/evp.h>
- \&
- \& const EVP_CIPHER *EVP_idea_cbc(void);
- \& const EVP_CIPHER *EVP_idea_cfb(void);
- \& const EVP_CIPHER *EVP_idea_cfb64(void);
- \& const EVP_CIPHER *EVP_idea_ecb(void);
- \& const EVP_CIPHER *EVP_idea_ofb(void);
- .Ve
- .SH DESCRIPTION
- .IX Header "DESCRIPTION"
- The IDEA encryption algorithm for EVP.
- .IP "\fBEVP_idea_cbc()\fR, \fBEVP_idea_cfb()\fR, \fBEVP_idea_cfb64()\fR, \fBEVP_idea_ecb()\fR, \fBEVP_idea_ofb()\fR" 4
- .IX Item "EVP_idea_cbc(), EVP_idea_cfb(), EVP_idea_cfb64(), EVP_idea_ecb(), EVP_idea_ofb()"
- The IDEA encryption algorithm in CBC, CFB, ECB and OFB modes respectively.
- .SH NOTES
- .IX Header "NOTES"
- Developers should be aware of the negative performance implications of
- calling these functions multiple times and should consider using
- \&\fBEVP_CIPHER_fetch\fR\|(3) with \fBEVP_CIPHER\-IDEA\fR\|(7) instead.
- See "Performance" in \fBcrypto\fR\|(7) for further information.
- .SH "RETURN VALUES"
- .IX Header "RETURN VALUES"
- These functions return an \fBEVP_CIPHER\fR structure that contains the
- implementation of the symmetric cipher. See \fBEVP_CIPHER_meth_new\fR\|(3) for
- details of the \fBEVP_CIPHER\fR structure.
- .SH "SEE ALSO"
- .IX Header "SEE ALSO"
- \&\fBevp\fR\|(7),
- \&\fBEVP_EncryptInit\fR\|(3),
- \&\fBEVP_CIPHER_meth_new\fR\|(3)
- .SH COPYRIGHT
- .IX Header "COPYRIGHT"
- Copyright 2017\-2023 The OpenSSL Project Authors. All Rights Reserved.
- .PP
- Licensed under the Apache License 2.0 (the "License"). You may not use
- this file except in compliance with the License. You can obtain a copy
- in the file LICENSE in the source distribution or at
- <https://www.openssl.org/source/license.html>.
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