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127.TH RSA_set_method 3 "2010-11-16" "0.9.8p" "OpenSSL" 128.\" For nroff, turn off justification. Always turn off hyphenation; it makes 129.\" way too many mistakes in technical documents. 130.if n .ad l 131.nh |
132.SH "NAME" 133RSA_set_default_method, RSA_get_default_method, RSA_set_method, 134RSA_get_method, RSA_PKCS1_SSLeay, RSA_null_method, RSA_flags, 135RSA_new_method \- select RSA method 136.SH "SYNOPSIS" 137.IX Header "SYNOPSIS" 138.Vb 1 139\& #include <openssl/rsa.h> |
140\& |
141\& void RSA_set_default_method(const RSA_METHOD *meth); |
142\& |
143\& RSA_METHOD *RSA_get_default_method(void); |
144\& |
145\& int RSA_set_method(RSA *rsa, const RSA_METHOD *meth); |
146\& |
147\& RSA_METHOD *RSA_get_method(const RSA *rsa); |
148\& |
149\& RSA_METHOD *RSA_PKCS1_SSLeay(void); |
150\& |
151\& RSA_METHOD *RSA_null_method(void); |
152\& |
153\& int RSA_flags(const RSA *rsa); |
154\& |
155\& RSA *RSA_new_method(RSA_METHOD *method); 156.Ve 157.SH "DESCRIPTION" 158.IX Header "DESCRIPTION" 159An \fB\s-1RSA_METHOD\s0\fR specifies the functions that OpenSSL uses for \s-1RSA\s0 160operations. By modifying the method, alternative implementations such as 161hardware accelerators may be used. \s-1IMPORTANT:\s0 See the \s-1NOTES\s0 section for 162important information about how these \s-1RSA\s0 \s-1API\s0 functions are affected by the --- 41 unchanged lines hidden (view full) --- 204the default method is used. 205.SH "THE RSA_METHOD STRUCTURE" 206.IX Header "THE RSA_METHOD STRUCTURE" 207.Vb 4 208\& typedef struct rsa_meth_st 209\& { 210\& /* name of the implementation */ 211\& const char *name; |
212\& |
213\& /* encrypt */ 214\& int (*rsa_pub_enc)(int flen, unsigned char *from, 215\& unsigned char *to, RSA *rsa, int padding); |
216\& |
217\& /* verify arbitrary data */ 218\& int (*rsa_pub_dec)(int flen, unsigned char *from, 219\& unsigned char *to, RSA *rsa, int padding); |
220\& |
221\& /* sign arbitrary data */ 222\& int (*rsa_priv_enc)(int flen, unsigned char *from, 223\& unsigned char *to, RSA *rsa, int padding); |
224\& |
225\& /* decrypt */ 226\& int (*rsa_priv_dec)(int flen, unsigned char *from, 227\& unsigned char *to, RSA *rsa, int padding); |
228\& 229\& /* compute r0 = r0 ^ I mod rsa\->n (May be NULL for some |
230\& implementations) */ 231\& int (*rsa_mod_exp)(BIGNUM *r0, BIGNUM *I, RSA *rsa); |
232\& |
233\& /* compute r = a ^ p mod m (May be NULL for some implementations) */ 234\& int (*bn_mod_exp)(BIGNUM *r, BIGNUM *a, const BIGNUM *p, 235\& const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx); |
236\& |
237\& /* called at RSA_new */ 238\& int (*init)(RSA *rsa); |
239\& |
240\& /* called at RSA_free */ 241\& int (*finish)(RSA *rsa); |
242\& 243\& /* RSA_FLAG_EXT_PKEY \- rsa_mod_exp is called for private key |
244\& * operations, even if p,q,dmp1,dmq1,iqmp 245\& * are NULL |
246\& * RSA_FLAG_SIGN_VER \- enable rsa_sign and rsa_verify 247\& * RSA_METHOD_FLAG_NO_CHECK \- don\*(Aqt check pub/private match |
248\& */ 249\& int flags; |
250\& |
251\& char *app_data; /* ?? */ |
252\& |
253\& /* sign. For backward compatibility, this is used only 254\& * if (flags & RSA_FLAG_SIGN_VER) 255\& */ 256\& int (*rsa_sign)(int type, unsigned char *m, unsigned int m_len, 257\& unsigned char *sigret, unsigned int *siglen, RSA *rsa); |
258\& |
259\& /* verify. For backward compatibility, this is used only 260\& * if (flags & RSA_FLAG_SIGN_VER) 261\& */ 262\& int (*rsa_verify)(int type, unsigned char *m, unsigned int m_len, 263\& unsigned char *sigbuf, unsigned int siglen, RSA *rsa); |
264\& |
265\& } RSA_METHOD; 266.Ve 267.SH "RETURN VALUES" 268.IX Header "RETURN VALUES" 269\&\fIRSA_PKCS1_SSLeay()\fR, \fIRSA_PKCS1_null_method()\fR, \fIRSA_get_default_method()\fR 270and \fIRSA_get_method()\fR return pointers to the respective RSA_METHODs. 271.PP 272\&\fIRSA_set_default_method()\fR returns no value. --- 52 unchanged lines hidden --- |