2/21/2023 0 Comments Openssl generate key![]() If cb is not NULL, it will be called as follows using the BN_GENCB_call() function described on the BN_generate_prime(3) page. Key sizes with num =1024 | >=4096 | >=8192Ī callback function may be used to provide feedback about the progress of the key generation. The modulus size will be of length bits, the number of primes to form the modulus will be primes, and the public exponent will be e. If the automatic seeding or reseeding of the OpenSSL CSPRNG fails due to external circumstances (see RAND(7)), the operation will fail. The number of primes is given by the primes parameter. RSA_generate_multi_prime_key() generates a multi-prime RSA key pair and stores it in the RSA structure provided in rsa. RSA_generate_key_ex() generates a 2-prime RSA key pair and stores it in the RSA structure provided in rsa. Applications should instead use EVP_RSA_gen(), EVP_PKEY_Q_keygen(3), or EVP_PKEY_keygen_init(3) and EVP_PKEY_keygen(3). Void (*callback)(int, int, void *), void *cb_arg) DESCRIPTIONĮVP_RSA_gen() generates a new RSA key pair with modulus size bits.Īll of the functions described below are deprecated. The following function has been deprecated since OpenSSL 0.9.8, and can be hidden entirely by defining OPENSSL_API_COMPAT with a suitable version value, see openssl_user_macros(7): RSA *RSA_generate_key(int bits, unsigned long e, ![]() ![]() Int RSA_generate_multi_prime_key(RSA *rsa, int bits, int primes, BIGNUM *e, BN_GENCB *cb) The following functions have been deprecated since OpenSSL 3.0, and can be hidden entirely by defining OPENSSL_API_COMPAT with a suitable version value, see openssl_user_macros(7): int RSA_generate_key_ex(RSA *rsa, int bits, BIGNUM *e, BN_GENCB *cb) ![]() EVP_RSA_gen, RSA_generate_key_ex, RSA_generate_key, RSA_generate_multi_prime_key - generate RSA key pair SYNOPSIS #include ĮVP_PKEY *EVP_RSA_gen(unsigned int bits) ![]()
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