On 16/02/18 17:24, Gelareh Taban wrote: > Hi all, > > I need to convert a Json Web Key (JWK) to PEM PKCS#8 format. > > I am using creating an RSA key using the parameters in JWK and then > using i2d_RSAPublicKey() to encode the RSA key to PEM PKCS#1. > > Are there any OpenSSL functions that programmatically convert the key > (both public and private) to PKCS#8? You can use PEM_write_bio_PrivateKey() for this purpose. You need to have your RSA key in EVP_PKEY format first. So something like (simplified to remove error handling): EVP_PKEY *key = EVP_PKEY_new(); EVP_PKEY_assign_RSA(key, rsa); https://www.openssl.org/docs/man1.1.0/crypto/PEM_write_bio_PrivateKey.html https://www.openssl.org/docs/man1.1.0/crypto/EVP_PKEY_new.html https://www.openssl.org/docs/man1.1.0/crypto/EVP_PKEY_assign_RSA.html Matt -- openssl-users mailing list To unsubscribe: https://mta.openssl.org/mailman/listinfo/openssl-users
