a small library to easily encrypt/decrypt with RSA public/private key pair.
openssl genrsa -out private.pem 2048 openssl rsa -in private.pem -out public.pem -pubout -outform PEMgit clone https://github.com/vspaz/rsa-encrypt-decrypt-python.git cd rsa-encrypt-decrypt-python pip3 install .from cryptolib import serializers def encrypt_message(message_to_encrypt: str) -> bytes: public_key = """-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxGDcSAjiHKP9v2ITR+Bj Qmt9Tx2zW08ZyrjOxPew+Gxl2m5zJyoP8sicZV81BeMNFkMg6q7sMtRXHhX1nFiT ql5HBIqhZohYlN3LIXK2bdPWpDttrOFXfsSbZ4Wqy3XhXBhiPNn3kkkRv1N5L/IY cdrxwqaqvTlJzOeQnDsd3+AmkYstuD4rgElOFkcUawtF7lKIYYFi42cYkJo51UD4 60mYieBezP6dZhFZB56pZ2rV8cQUNrUQy2llpj+PxX/yhGnYI88ij0FST0gI2l4U sjtwXVB1Y2SxqrhNMdBU7W6ZA8WUQQidr4MBxEFoujsLjaCl8LMsbEpAAilKezwu bQIDAQAB -----END PUBLIC KEY----- """ encoder = serializers.Encoder(public_key=public_key) encrypted_message = encoder.encrypt(unencrypted_text=message_to_encrypt) return encoder.to_base_85(serializable=encrypted_message) def decrypt_message(message_to_decrypt: bytes) -> str: private_key = """-----BEGIN RSA PRIVATE KEY----- MIIEowIBAAKCAQEAxGDcSAjiHKP9v2ITR+BjQmt9Tx2zW08ZyrjOxPew+Gxl2m5z JyoP8sicZV81BeMNFkMg6q7sMtRXHhX1nFiTql5HBIqhZohYlN3LIXK2bdPWpDtt rOFXfsSbZ4Wqy3XhXBhiPNn3kkkRv1N5L/IYcdrxwqaqvTlJzOeQnDsd3+AmkYst uD4rgElOFkcUawtF7lKIYYFi42cYkJo51UD460mYieBezP6dZhFZB56pZ2rV8cQU NrUQy2llpj+PxX/yhGnYI88ij0FST0gI2l4UsjtwXVB1Y2SxqrhNMdBU7W6ZA8WU QQidr4MBxEFoujsLjaCl8LMsbEpAAilKezwubQIDAQABAoIBAFgkwbrzgcopMXP9 qXnRlbvyU0R3qFGLp5/+Y5C1PJHE1dK9UKJ7lrz6nnhBy6Lgzrb3Wob8DLij5pZy dNPATkdiGa5IKznCaUAobUyOGKQjOWxt4ESAwKz9wmMs9ARu3MBhkXaOvzjB411l Mjf7Ck3QYENmW6yjUiTOq3H0duxM/rn1Y88a9z2+aoWXQTltWvu0qKfb8SsqKzzx HQFSalgNUxIqs+NoHRAT4ygzGGgipdP2/gXA966UonYuFAkpkutCeKVd7/6dMbm8 bgnr/x6ivGeLkbIaVkHNPRU+P4SYX1/XZohYIkTbggIih2aeH6+lEka8yZURANI6 HSUwLAECgYEA4bfavKu12NiIUO75/ZcqF8ojXq5+7HXP59t5X5MrURj2jizWs8YH vPdrvYqxQNMZ0U0ZQBdAUWCn0Z11OXEak7YpKP78yoLIw2YnhgLVFvp3xZ+pIjjN yidWbIvoq8SLMiUYHrMy3lMwVyFjM/AuA6bqNffCbHXqs9Ut+WnDN6ECgYEA3rlZ S1gnE0sJrAJQ/5FnKgY/+TP6p+/k1SmRahNxYqpdP2t4CSwtYvjExRYcZefWFV1V G04KvFuKf4p9zasYnISvWV735KU++li/QEw0LrVzXcnoRXiZwXauQzYQI6tuMYmc NQRGBma3R7lQ/93YV3+hdubG+VCUsAC/B42zk00CgYAJ8zngQU2F3p27u50nkadY Xx/KB7UupU7h8KncDbfGHmyX/eAFEsC6ksmcFGYV7nhf4p8vVRcPv0wGkINfYd4D Du+nj/4Cy1sgSfuKC8vq9GWdP5mMGabwt2U26b/6+nIMZtg2Wj3u0Qn7fUxLONY+ cPg4ItDeSSBshwQ8z228oQKBgGyXL/s1OrAEaO3Nn1JLwWHS9EP7XN2ecBKiFr0C R8kUSSyPqFHIkURtB/sTobrpww5dmA4dCcz2UNuIWXf6UKCXbKsFS5XWH5ONy4l8 3gBcBaiXtcCRYV3bEHHCnTHW9n3+mwOaVs3uLLQynVRzBHT8zGudbyvFZwk9A+aZ 5xENAoGBALO842ymiZmFYiv9CIdfBGFokbokQMci+4cJm4wWzxEiDjAzSglRHAei /+oGBiPm8mKmx/dcU408x4PK76JlfduuoXuzE9jEmx46kwU4jGDS1GZYkwjGVPY8 8UmZ7fFkjNFJH0Rh5y+tmoFyou3FsWzL2lpd1mIryAH2LR3PGE/t -----END RSA PRIVATE KEY-----""" decoder = serializers.Decoder(private_key=private_key) base85_decoded_message = decoder.from_base_85(deserializable=message_to_decrypt) return decoder.decrypt(encrypted_text=base85_decoded_message).decode() def main(): initial_message = "some text goes here" encrypted_message = encrypt_message(message_to_encrypt=initial_message) decrypted_message = decrypt_message(message_to_decrypt=encrypted_message) assert decrypted_message == initial_message if __name__ == "__main__": main()NOTE: please refer to:
- rsa-encrypt-decrypt-golang for the Go lib
- rsa-encrypt-decrypt-rust for the Rust lib