In message <KL1PR01MB1334EA721A8064B36C7062F3DC590@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> on Mon, 13 Feb 2017 10:57:27 +0000, khurram ashraf <khurramashraf_786@xxxxxxxxxxx> said: khurramashraf_786> Here the engine loads but when i try to encrypt a text file by using khurramashraf_786> following command khurramashraf_786> khurramashraf_786> openssl pkeyutl -encrypt -in message.txt -pubin -inkey pubkey-B.pem -engine rsa_engine -out cipher.bin khurramashraf_786> openssl pkeyutl -decrypt -in cipher.bin -inkey privkey-B.pem -engine rsa_engine -out rec.txt khurramashraf_786> khurramashraf_786> It seems that it is not using the functions which I defined in the khurramashraf_786> struct_rsa. It is also not giving the output from the printf in the khurramashraf_786> function. You need to tell it where to find the engine as well. libcrypto looks in the standard system places (typically /usr/lib or so) and the path given by the environment variable OPENSSL_ENGINES. Try these lines and see if that makes a difference: OPENSSL_ENGINES=. export OPENSSL_ENGINES openssl pkeyutl -encrypt -in message.txt -pubin -inkey pubkey-B.pem -engine rsa_engine -out cipher.bin openssl pkeyutl -decrypt -in cipher.bin -inkey privkey-B.pem -engine rsa_engine -out rec.txt Cheers, Richard -- Richard Levitte levitte@xxxxxxxxxxx OpenSSL Project http://www.openssl.org/~levitte/ -- openssl-users mailing list To unsubscribe: https://mta.openssl.org/mailman/listinfo/openssl-users