Updated: 2025/Nov/16

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SSL_get1_builtin_sigalgs(3)         OpenSSL        SSL_get1_builtin_sigalgs(3)


NAME
       SSL_get1_builtin_sigalgs - get list of built-in signature algorithms

SYNOPSIS
        #include <openssl/tls1.h>

        char *SSL_get1_builtin_sigalgs(OSSL_LIB_CTX *libctx);

DESCRIPTION
       Return the colon-separated list of built-in and available TLS signature
       algorithms.  The string returned must be freed by the user using
       OPENSSL_free(3).

NOTES
       The string may be empty (strlen==0) if none of the built-in TLS
       signature algorithms can be activated, e.g., if suitable providers are
       missing.

RETURN VALUES
       NULL may be returned if no memory could be allocated. Otherwise, a
       newly allocated string is always returned but it may have strlen == 0.

HISTORY
       This function was added in OpenSSL 3.4.

COPYRIGHT
       Copyright 2000-2024 The OpenSSL Project Authors. All Rights Reserved.

       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>.

3.5.1                             2025-07-01       SSL_get1_builtin_sigalgs(3)