On 15/01/17 03:47, Norm Green wrote: > Is there a way to encrypt a file using the openssl command with an > elliptic curve public key? Here's what I get when I try using OpenSSL > 1.1.0c : OpenSSL only supports ECDH (for key exchange) and ECDSA (for digital signatures) for elliptic curve keys, i.e. there are no ec encryption algorithms available. Matt > > normg>./openssl pkeyutl -encrypt -pubin -inkey secp256k1-public-key.pem > -in a.txt -out a.txt.enc > pkeyutl: Error initializing context > 140339244734272:error:0608B096:digital envelope > routines:EVP_PKEY_encrypt_init:operation not supported for this > keytype:crypto/evp/pmeth_fn.c:139: > > normg>cat secp256k1-public-key.pem > -----BEGIN PUBLIC KEY----- > MFYwEAYHKoZIzj0CAQYFK4EEAAoDQgAE3bT9LIDRFNZ1D5QbA90zDh6UxDyYdrQv > XmxFEr1AwKnmeD8dAg4F62ddmzX76fNaw1QqLbmEQTLdrEYM3KxUdA== > -----END PUBLIC KEY----- > > > Norm Green -- openssl-users mailing list To unsubscribe: https://mta.openssl.org/mailman/listinfo/openssl-users
