Re: How to compute all attributes of RSA private key from modulus and private exponent?
delcour.pierre wrote: Metalpalo wrote: Hello Ihave got one question: Does exist some way how to compute all attributes of private key from modulus and private exponent? I think as public exponent, prime1, prime2, exp1, exp2... Thanks My previous answer doesn't answer to your question, sorry, my mistake. Have a nice day, pierre __ OpenSSL Project http://www.openssl.org User Support Mailing Listopenssl-users@openssl.org Automated List Manager [EMAIL PROTECTED]
Re: How to compute all attributes of RSA private key from modulus and private exponent?
Metalpalo wrote: Hello Ihave got one question: Does exist some way how to compute all attributes of private key from modulus and private exponent? I think as public exponent, prime1, prime2, exp1, exp2... Thanks If you want to generate a rsa key with openssl code (not in line command) : RSA *rsa_ori = RSA_new(); // create a new rsa BIGNUM *e = BN_new();// create a new BN EVP_PKEY* key = EVP_PKEY_new();// create a blank one if (! BN_hex2bn(&e , /* the wanted exponent in char* , wrote in hexa i.e "010001"*/)) // set the BN value with the future exponent return -1; // Error : can't set the exponent if(! RSA_generate_key_ex(rsa_ori,/* int for the key length i.e 1024 */,e,NULL)) // if the generation runs badly -> throw error return -1; // Error : key can't be generated // if can't put private part of rsa in evp -> throw error if (EVP_PKEY_set1_RSA(key, RSAPrivateKey_dup(rsa_ori)) <1) return -1; // Error : key can't be set. Here both RSA struct and EVP_PKEY struct contains all numbers needed to generate a rsa key. I hope my answer help you ;) Have a nice day, pierre __ OpenSSL Project http://www.openssl.org User Support Mailing Listopenssl-users@openssl.org Automated List Manager [EMAIL PROTECTED]
How to compute all attributes of RSA private key from modulus and private exponent?
Hello Ihave got one question: Does exist some way how to compute all attributes of private key from modulus and private exponent? I think as public exponent, prime1, prime2, exp1, exp2... Thanks -- View this message in context: http://www.nabble.com/How-to-compute-all-attributes-of-RSA-private-key-from-modulus-and-private-exponent--tp19063579p19063579.html Sent from the OpenSSL - User mailing list archive at Nabble.com. __ OpenSSL Project http://www.openssl.org User Support Mailing Listopenssl-users@openssl.org Automated List Manager [EMAIL PROTECTED]
