summaryrefslogtreecommitdiff
path: root/src/lib/libcrypto/man/evp.3
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--src/lib/libcrypto/man/evp.3249
1 files changed, 0 insertions, 249 deletions
diff --git a/src/lib/libcrypto/man/evp.3 b/src/lib/libcrypto/man/evp.3
deleted file mode 100644
index 2c54c0f981..0000000000
--- a/src/lib/libcrypto/man/evp.3
+++ /dev/null
@@ -1,249 +0,0 @@
1.\" $OpenBSD: evp.3,v 1.36 2024/12/06 14:27:49 schwarze Exp $
2.\" full merge up to: OpenSSL man7/evp 24a535ea Sep 22 13:14:20 2020 +0100
3.\"
4.\" This file was written by Ulf Moeller <ulf@openssl.org>,
5.\" Matt Caswell <matt@openssl.org>, Geoff Thorpe <geoff@openssl.org>,
6.\" and Dr. Stephen Henson <steve@openssl.org>.
7.\" Copyright (c) 2000, 2002, 2006, 2013, 2016 The OpenSSL Project.
8.\" All rights reserved.
9.\"
10.\" Redistribution and use in source and binary forms, with or without
11.\" modification, are permitted provided that the following conditions
12.\" are met:
13.\"
14.\" 1. Redistributions of source code must retain the above copyright
15.\" notice, this list of conditions and the following disclaimer.
16.\"
17.\" 2. Redistributions in binary form must reproduce the above copyright
18.\" notice, this list of conditions and the following disclaimer in
19.\" the documentation and/or other materials provided with the
20.\" distribution.
21.\"
22.\" 3. All advertising materials mentioning features or use of this
23.\" software must display the following acknowledgment:
24.\" "This product includes software developed by the OpenSSL Project
25.\" for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
26.\"
27.\" 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
28.\" endorse or promote products derived from this software without
29.\" prior written permission. For written permission, please contact
30.\" openssl-core@openssl.org.
31.\"
32.\" 5. Products derived from this software may not be called "OpenSSL"
33.\" nor may "OpenSSL" appear in their names without prior written
34.\" permission of the OpenSSL Project.
35.\"
36.\" 6. Redistributions of any form whatsoever must retain the following
37.\" acknowledgment:
38.\" "This product includes software developed by the OpenSSL Project
39.\" for use in the OpenSSL Toolkit (http://www.openssl.org/)"
40.\"
41.\" THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
42.\" EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
44.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
45.\" ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
46.\" SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
47.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
48.\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
49.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
50.\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
51.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
52.\" OF THE POSSIBILITY OF SUCH DAMAGE.
53.\"
54.Dd $Mdocdate: December 6 2024 $
55.Dt EVP 3
56.Os
57.Sh NAME
58.Nm evp
59.Nd high-level cryptographic functions
60.Sh SYNOPSIS
61.In openssl/evp.h
62.Sh DESCRIPTION
63The EVP library provides a high-level interface to cryptographic
64functions.
65The abbreviation
66.Dq EVP
67is intended to mean
68.Dq EnVeloPe
69in the sense of
70.Dq wrapper library .
71It is not related to the technical meaning of the term
72.Dq envelope
73in contexts like
74.Xr CMS_encrypt 3 ,
75.Xr EVP_SealInit 3 ,
76.Xr PKCS7_encrypt 3 ,
77or
78.Xr SMIME_write_ASN1 3 .
79.Pp
80.Xr EVP_SealInit 3
81and
82.Xr EVP_OpenInit 3
83provide public key encryption and decryption to implement digital
84"envelopes".
85.Pp
86The
87.Xr EVP_DigestSignInit 3
88and
89.Xr EVP_DigestVerifyInit 3
90functions implement digital signatures and Message Authentication Codes
91(MACs).
92Also see the older
93.Xr EVP_SignInit 3
94and
95.Xr EVP_VerifyInit 3
96functions.
97.Pp
98Symmetric encryption is available with the
99.Xr EVP_EncryptInit 3
100functions.
101The
102.Xr EVP_DigestInit 3
103functions provide message digests.
104.Pp
105Authenticated encryption with additional data (AEAD) is available with
106the
107.Xr EVP_AEAD_CTX_init 3
108functions.
109.Pp
110The
111.Fn EVP_PKEY_*
112functions provide a high-level interface to asymmetric algorithms.
113To create a new
114.Vt EVP_PKEY ,
115see
116.Xr EVP_PKEY_new 3 .
117.Vt EVP_PKEY Ns s
118can be associated with a private key of a particular algorithm
119by using the functions described in the
120.Xr EVP_PKEY_set1_RSA 3
121page, or new keys can be generated using
122.Xr EVP_PKEY_keygen 3 .
123.Vt EVP_PKEY Ns s
124can be compared using
125.Xr EVP_PKEY_cmp 3
126or printed using
127.Xr EVP_PKEY_print_private 3 .
128.Pp
129The
130.Fn EVP_PKEY_*
131functions support the full range of asymmetric algorithm operations:
132.Bl -bullet
133.It
134For key agreement, see
135.Xr EVP_PKEY_derive 3 .
136.It
137For signing and verifying, see
138.Xr EVP_PKEY_sign 3 ,
139.Xr EVP_PKEY_verify 3 ,
140and
141.Xr EVP_PKEY_verify_recover 3 .
142However, note that these functions do not perform a digest of the
143data to be signed.
144Therefore, normally you would use the
145.Xr EVP_DigestSignInit 3
146functions for this purpose.
147.It
148For encryption and decryption see
149.Xr EVP_PKEY_encrypt 3
150and
151.Xr EVP_PKEY_decrypt 3 ,
152respectively.
153However, note that these functions perform encryption and decryption only.
154As public key encryption is an expensive operation, normally you
155would wrap an encrypted message in a digital envelope using the
156.Xr EVP_SealInit 3
157and
158.Xr EVP_OpenInit 3
159functions.
160.El
161.Pp
162The
163.Xr EVP_BytesToKey 3
164function provides some limited support for password based encryption.
165Careful selection of the parameters will provide a PKCS#5 PBKDF1
166compatible implementation.
167However, new applications should typically not use this (preferring, for
168example, PBKDF2 from PCKS#5).
169.Pp
170The
171.Xr EVP_EncodeInit 3
172family of functions provides base64 encoding and decoding.
173.Sh SEE ALSO
174.Xr ASN1_item_digest 3 ,
175.Xr ASN1_item_sign 3 ,
176.Xr BIO_f_cipher 3 ,
177.Xr BIO_f_md 3 ,
178.Xr CMAC_Init 3 ,
179.Xr CMS_encrypt 3 ,
180.Xr CMS_sign 3 ,
181.Xr crypto 3 ,
182.Xr d2i_PKCS8PrivateKey_bio 3 ,
183.Xr d2i_PrivateKey 3 ,
184.Xr EVP_AEAD_CTX_init 3 ,
185.Xr EVP_aes_128_cbc 3 ,
186.Xr EVP_BytesToKey 3 ,
187.Xr EVP_camellia_128_cbc 3 ,
188.Xr EVP_chacha20 3 ,
189.Xr EVP_CIPHER_CTX_ctrl 3 ,
190.Xr EVP_CIPHER_CTX_get_cipher_data 3 ,
191.Xr EVP_CIPHER_CTX_init 3 ,
192.Xr EVP_CIPHER_CTX_set_flags 3 ,
193.Xr EVP_CIPHER_do_all 3 ,
194.Xr EVP_CIPHER_meth_new 3 ,
195.Xr EVP_CIPHER_nid 3 ,
196.Xr EVP_des_cbc 3 ,
197.Xr EVP_DigestInit 3 ,
198.Xr EVP_DigestSignInit 3 ,
199.Xr EVP_DigestVerifyInit 3 ,
200.Xr EVP_EncodeInit 3 ,
201.Xr EVP_EncryptInit 3 ,
202.Xr EVP_MD_CTX_ctrl 3 ,
203.Xr EVP_MD_nid 3 ,
204.Xr EVP_OpenInit 3 ,
205.Xr EVP_PKCS82PKEY 3 ,
206.Xr EVP_PKEY_asn1_get_count 3 ,
207.Xr EVP_PKEY_cmp 3 ,
208.Xr EVP_PKEY_CTX_ctrl 3 ,
209.Xr EVP_PKEY_CTX_get_operation 3 ,
210.Xr EVP_PKEY_CTX_new 3 ,
211.Xr EVP_PKEY_CTX_set_hkdf_md 3 ,
212.Xr EVP_PKEY_decrypt 3 ,
213.Xr EVP_PKEY_derive 3 ,
214.Xr EVP_PKEY_encrypt 3 ,
215.Xr EVP_PKEY_get_default_digest_nid 3 ,
216.Xr EVP_PKEY_keygen 3 ,
217.Xr EVP_PKEY_new 3 ,
218.Xr EVP_PKEY_print_private 3 ,
219.Xr EVP_PKEY_set1_RSA 3 ,
220.Xr EVP_PKEY_sign 3 ,
221.Xr EVP_PKEY_size 3 ,
222.Xr EVP_PKEY_verify 3 ,
223.Xr EVP_PKEY_verify_recover 3 ,
224.Xr EVP_rc4 3 ,
225.Xr EVP_SealInit 3 ,
226.Xr EVP_sha1 3 ,
227.Xr EVP_sha3_224 3 ,
228.Xr EVP_SignInit 3 ,
229.Xr EVP_sm3 3 ,
230.Xr EVP_sm4_cbc 3 ,
231.Xr EVP_VerifyInit 3 ,
232.Xr HMAC 3 ,
233.Xr OCSP_basic_sign 3 ,
234.Xr OCSP_request_sign 3 ,
235.Xr PEM_get_EVP_CIPHER_INFO 3 ,
236.Xr PEM_read_bio_PrivateKey 3 ,
237.Xr PKCS12_create 3 ,
238.Xr PKCS5_PBKDF2_HMAC 3 ,
239.Xr PKCS7_encrypt 3 ,
240.Xr PKCS7_sign 3 ,
241.Xr RSA_pkey_ctx_ctrl 3 ,
242.Xr SSL_CTX_set_tlsext_ticket_key_cb 3 ,
243.Xr X509_ALGOR_set0 3 ,
244.Xr X509_check_private_key 3 ,
245.Xr X509_digest 3 ,
246.Xr X509_get_pubkey 3 ,
247.Xr X509_PUBKEY_set 3 ,
248.Xr X509_sign 3 ,
249.Xr X509_to_X509_REQ 3
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-05-06 23:06:54 +0000