diff options
Diffstat (limited to 'crypto/openssl/doc/man3/EVP_PKEY_CTX_set_hkdf_md.pod')
| -rw-r--r-- | crypto/openssl/doc/man3/EVP_PKEY_CTX_set_hkdf_md.pod | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/crypto/openssl/doc/man3/EVP_PKEY_CTX_set_hkdf_md.pod b/crypto/openssl/doc/man3/EVP_PKEY_CTX_set_hkdf_md.pod index 974bbed9b9f2..66fe3dc8fa27 100644 --- a/crypto/openssl/doc/man3/EVP_PKEY_CTX_set_hkdf_md.pod +++ b/crypto/openssl/doc/man3/EVP_PKEY_CTX_set_hkdf_md.pod @@ -4,14 +4,14 @@ EVP_PKEY_CTX_set_hkdf_md, EVP_PKEY_CTX_set1_hkdf_salt, EVP_PKEY_CTX_set1_hkdf_key, EVP_PKEY_CTX_add1_hkdf_info, -EVP_PKEY_CTX_hkdf_mode - +EVP_PKEY_CTX_set_hkdf_mode - HMAC-based Extract-and-Expand key derivation algorithm =head1 SYNOPSIS #include <openssl/kdf.h> - int EVP_PKEY_CTX_hkdf_mode(EVP_PKEY_CTX *pctx, int mode); + int EVP_PKEY_CTX_set_hkdf_mode(EVP_PKEY_CTX *pctx, int mode); int EVP_PKEY_CTX_set_hkdf_md(EVP_PKEY_CTX *pctx, const EVP_MD *md); @@ -33,8 +33,8 @@ and "extracts" from it a fixed-length pseudorandom key K. The second stage "expands" the key K into several additional pseudorandom keys (the output of the KDF). -EVP_PKEY_CTX_hkdf_mode() sets the mode for the HKDF operation. There are three -modes that are currently defined: +EVP_PKEY_CTX_set_hkdf_mode() sets the mode for the HKDF operation. There +are three modes that are currently defined: =over 4 @@ -95,13 +95,11 @@ string which is converted to binary. =head1 NOTES -All these functions are implemented as macros. - A context for HKDF can be obtained by calling: EVP_PKEY_CTX *pctx = EVP_PKEY_CTX_new_id(EVP_PKEY_HKDF, NULL); -The total length of the info buffer cannot exceed 1024 bytes in length: this +The total length of the info buffer cannot exceed 2048 bytes in length: this should be more than enough for any normal use of HKDF. The output length of an HKDF expand operation is specified via the length @@ -154,11 +152,16 @@ L<EVP_PKEY_CTX_new(3)>, L<EVP_PKEY_CTX_ctrl_str(3)>, L<EVP_PKEY_derive(3)> +=head1 HISTORY + +All of the functions described here were converted from macros to functions in +OpenSSL 3.0. + =head1 COPYRIGHT -Copyright 2016-2019 The OpenSSL Project Authors. All Rights Reserved. +Copyright 2016-2022 The OpenSSL Project Authors. All Rights Reserved. -Licensed under the OpenSSL license (the "License"). You may not use +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 L<https://www.openssl.org/source/license.html>. |