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rsa_new(3) [centos man page]

RSA_new(3)							      OpenSSL								RSA_new(3)

NAME
RSA_new, RSA_free - allocate and free RSA objects SYNOPSIS
#include <openssl/rsa.h> RSA * RSA_new(void); void RSA_free(RSA *rsa); DESCRIPTION
RSA_new() allocates and initializes an RSA structure. It is equivalent to calling RSA_new_method(NULL). RSA_free() frees the RSA structure and its components. The key is erased before the memory is returned to the system. RETURN VALUES
If the allocation fails, RSA_new() returns NULL and sets an error code that can be obtained by ERR_get_error(3). Otherwise it returns a pointer to the newly allocated structure. RSA_free() returns no value. SEE ALSO
ERR_get_error(3), rsa(3), RSA_generate_key(3), RSA_new_method(3) HISTORY
RSA_new() and RSA_free() are available in all versions of SSLeay and OpenSSL. 1.0.1e 2013-02-11 RSA_new(3)

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rsa(3)								      OpenSSL								    rsa(3)

NAME
rsa - RSA public key cryptosystem SYNOPSIS
#include <openssl/rsa.h> #include <openssl/engine.h> RSA * RSA_new(void); void RSA_free(RSA *rsa); int RSA_public_encrypt(int flen, unsigned char *from, unsigned char *to, RSA *rsa, int padding); int RSA_private_decrypt(int flen, unsigned char *from, unsigned char *to, RSA *rsa, int padding); int RSA_private_encrypt(int flen, unsigned char *from, unsigned char *to, RSA *rsa,int padding); int RSA_public_decrypt(int flen, unsigned char *from, unsigned char *to, RSA *rsa,int padding); int RSA_sign(int type, unsigned char *m, unsigned int m_len, unsigned char *sigret, unsigned int *siglen, RSA *rsa); int RSA_verify(int type, unsigned char *m, unsigned int m_len, unsigned char *sigbuf, unsigned int siglen, RSA *rsa); int RSA_size(const RSA *rsa); RSA *RSA_generate_key(int num, unsigned long e, void (*callback)(int,int,void *), void *cb_arg); int RSA_check_key(RSA *rsa); int RSA_blinding_on(RSA *rsa, BN_CTX *ctx); void RSA_blinding_off(RSA *rsa); void RSA_set_default_method(const RSA_METHOD *meth); const RSA_METHOD *RSA_get_default_method(void); int RSA_set_method(RSA *rsa, const RSA_METHOD *meth); const RSA_METHOD *RSA_get_method(const RSA *rsa); RSA_METHOD *RSA_PKCS1_SSLeay(void); RSA_METHOD *RSA_null_method(void); int RSA_flags(const RSA *rsa); RSA *RSA_new_method(ENGINE *engine); int RSA_print(BIO *bp, RSA *x, int offset); int RSA_print_fp(FILE *fp, RSA *x, int offset); int RSA_get_ex_new_index(long argl, char *argp, int (*new_func)(), int (*dup_func)(), void (*free_func)()); int RSA_set_ex_data(RSA *r,int idx,char *arg); char *RSA_get_ex_data(RSA *r, int idx); int RSA_sign_ASN1_OCTET_STRING(int dummy, unsigned char *m, unsigned int m_len, unsigned char *sigret, unsigned int *siglen, RSA *rsa); int RSA_verify_ASN1_OCTET_STRING(int dummy, unsigned char *m, unsigned int m_len, unsigned char *sigbuf, unsigned int siglen, RSA *rsa); DESCRIPTION
These functions implement RSA public key encryption and signatures as defined in PKCS #1 v2.0 [RFC 2437]. The RSA structure consists of several BIGNUM components. It can contain public as well as private RSA keys: struct { BIGNUM *n; // public modulus BIGNUM *e; // public exponent BIGNUM *d; // private exponent BIGNUM *p; // secret prime factor BIGNUM *q; // secret prime factor BIGNUM *dmp1; // d mod (p-1) BIGNUM *dmq1; // d mod (q-1) BIGNUM *iqmp; // q^-1 mod p // ... }; RSA In public keys, the private exponent and the related secret values are NULL. p, q, dmp1, dmq1 and iqmp may be NULL in private keys, but the RSA operations are much faster when these values are available. Note that RSA keys may use non-standard RSA_METHOD implementations, either directly or by the use of ENGINE modules. In some cases (eg. an ENGINE providing support for hardware-embedded keys), these BIGNUM values will not be used by the implementation or may be used for alternative data storage. For this reason, applications should generally avoid using RSA structure elements directly and instead use API functions to query or modify keys. CONFORMING TO
SSL, PKCS #1 v2.0 PATENTS
RSA was covered by a US patent which expired in September 2000. SEE ALSO
rsa(1), bn(3), dsa(3), dh(3), rand(3), engine(3), RSA_new(3), RSA_public_encrypt(3), RSA_sign(3), RSA_size(3), RSA_generate_key(3), RSA_check_key(3), RSA_blinding_on(3), RSA_set_method(3), RSA_print(3), RSA_get_ex_new_index(3), RSA_private_encrypt(3), RSA_sign_ASN1_OCTET_STRING(3), RSA_padding_add_PKCS1_type_1(3) 1.0.1e 2013-02-11 rsa(3)
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