OSSL_PROVIDER−default − OpenSSL default provider
The OpenSSL default provider supplies the majority of OpenSSL’s diverse algorithm implementations. If an application doesn’t specify anything else explicitly (e.g. in the application or via config), then this is the provider that will be used as fallback: It is loaded automatically the first time that an algorithm is fetched from a provider or a function acting on providers is called and no other provider has been loaded yet.
If an attempt to load a provider has already been made (whether successful or not) then the default provider won’t be loaded automatically. Therefore if the default provider is to be used in conjunction with other providers then it must be loaded explicitly. Automatic loading of the default provider only occurs a maximum of once; if the default provider is explicitly unloaded then the default provider will not be automatically loaded again.
The
implementations in this provider specifically have this
property defined:
"provider=default"
It may be used in a property query string with fetching functions such as EVP_MD_fetch(3) or EVP_CIPHER_fetch(3), as well as with other functions that take a property query string, such as EVP_PKEY_CTX_new_from_name(3).
It isn’t mandatory to query for this property, except to make sure to get implementations of this provider and none other.
Some implementations may define additional properties. Exact information is listed below
The OpenSSL default provider supports these operations and algorithms:
SHA1, see
EVP_MD−SHA1(7)
SHA2, see EVP_MD−SHA2(7)
SHA3, see EVP_MD−SHA3(7)
KECCAK-KMAC, see EVP_MD−KECCAK−KMAC(7)
SHAKE, see EVP_MD−SHAKE(7)
BLAKE2, see EVP_MD−BLAKE2(7)
SM3, see EVP_MD−SM3(7)
MD5, see EVP_MD−MD5(7)
MD5−SHA1, see EVP_MD−MD5−SHA1(7)
RIPEMD160, see EVP_MD−RIPEMD160(7)
NULL, see EVP_MD−NULL(7)
AES, see
EVP_CIPHER−AES(7)
ARIA, see EVP_CIPHER−ARIA(7)
CAMELLIA, see EVP_CIPHER−CAMELLIA(7)
3DES, see EVP_CIPHER−DES(7)
SEED, see EVP_CIPHER−SEED(7)
SM4, see EVP_CIPHER−SM4(7)
ChaCha20, see EVP_CIPHER−CHACHA(7)
ChaCha20−Poly1305, see
EVP_CIPHER−CHACHA(7)
NULL, see EVP_CIPHER−NULL(7)
BLAKE2, see
EVP_MAC−BLAKE2(7)
CMAC, see EVP_MAC−CMAC(7)
GMAC, see EVP_MAC−GMAC(7)
HMAC, see EVP_MAC−HMAC(7)
KMAC, see EVP_MAC−KMAC(7)
SIPHASH, see EVP_MAC−Siphash(7)
POLY1305, see EVP_MAC−Poly1305(7)
HKDF, see
EVP_KDF−HKDF(7)
SSKDF, see EVP_KDF−SS(7)
PBKDF2, see EVP_KDF−PBKDF2(7)
PKCS12KDF, see EVP_KDF−PKCS12KDF(7)
SSHKDF, see EVP_KDF−SSHKDF(7)
TLS1−PRF, see EVP_KDF−TLS1_PRF(7)
KBKDF, see EVP_KDF−KB(7)
X942KDF−ASN1, see
EVP_KDF−X942−ASN1(7)
X942KDF−CONCAT, see
EVP_KDF−X942−CONCAT(7)
X963KDF, see EVP_KDF−X963(7)
SCRYPT, see EVP_KDF−SCRYPT(7)
KRB5KDF, see EVP_KDF−KRB5KDF(7)
DH, see
EVP_KEYEXCH−DH(7)
ECDH, see EVP_KEYEXCH−ECDH(7)
X25519, see EVP_KEYEXCH−X25519(7)
X448, see EVP_KEYEXCH−X448(7)
DSA, see
EVP_SIGNATURE−DSA(7)
RSA, see EVP_SIGNATURE−RSA(7)
HMAC, see EVP_SIGNATURE−HMAC(7)
SIPHASH, see EVP_SIGNATURE−Siphash(7)
POLY1305, see EVP_SIGNATURE−Poly1305(7)
CMAC, see EVP_SIGNATURE−CMAC(7)
RSA, see
EVP_ASYM_CIPHER−RSA(7)
SM2, see EVP_ASYM_CIPHER−SM2(7)
RSA, see EVP_KEM−RSA(7)
DH, see
EVP_KEYMGMT−DH(7)
DHX, see EVP_KEYMGMT−DHX(7)
DSA, see EVP_KEYMGMT−DSA(7)
RSA, see EVP_KEYMGMT−RSA(7)
EC, see EVP_KEYMGMT−EC(7)
X25519, see EVP_KEYMGMT−X25519(7)
X448, see EVP_KEYMGMT−X448(7)
CTR-DRBG, see
EVP_RAND−CTR−DRBG(7)
HASH-DRBG, see EVP_RAND−HASH−DRBG(7)
HMAC-DRBG, see EVP_RAND−HMAC−DRBG(7)
SEED-SRC, see EVP_RAND−SEED−SRC(7)
TEST-RAND, see EVP_RAND−TEST−RAND(7)
The default
provider also includes all of the encoding algorithms
present in the base provider. Some of these have the
property "fips=yes", to allow them to be used
together with the FIPS provider.
RSA, see OSSL_ENCODER−RSA(7)
DH, see OSSL_ENCODER−DH(7)
DSA, see OSSL_ENCODER−DSA(7)
EC, see OSSL_ENCODER−EC(7)
X25519, see OSSL_ENCODER−X25519(7)
X448, see OSSL_ENCODER−X448(7)
openssl−core.h(7), openssl−core_dispatch.h(7), provider(7), OSSL_PROVIDER−base(7)
The RIPEMD160 digest was added to the default provider in OpenSSL 3.0.7.
All other functionality was added in OpenSSL 3.0.
Copyright 2020−2023 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>.