def serialize_pubkey(public_key: rsa.RSAPublicKey) -> bytes:
"""
Encode an RSA public key into the DER format.
"""
return public_key.public_bytes(
serialization.Encoding.DER,
serialization.PublicFormat.SubjectPublicKeyInfo)
def dump_public_key(key: rsa.RSAPublicKey) -> bytes:
"""Dump a public key to PEM format (text)
:param key: An RSAPrivateKey to dump the public key of
:return: The dumped bytes of the public key, as PEM
"""
return key.public_bytes(
encoding=serialization.Encoding.PEM,
format=serialization.PublicFormat.SubjectPublicKeyInfo,
)
def get_pub_key_pem(public_key: RSAPublicKey) -> str:
pub_key_pem = public_key.public_bytes(
serialization.Encoding.PEM,
serialization.PublicFormat.SubjectPublicKeyInfo).strip()
pub_key_pem = pub_key_pem.replace(
b"-----BEGIN PUBLIC KEY-----",
b"-----BEGIN RSA PUBLIC KEY-----").replace(
b"-----END PUBLIC KEY-----", b"-----END RSA PUBLIC KEY-----")
return pub_key_pem.decode("ascii")
def _pubkey_to_str(pubkey_object: rsa.RSAPublicKey) -> str:
""" Converts a public key object to a string """
pem = pubkey_object.public_bytes(
encoding=serialization.Encoding.PEM,
format=serialization.PublicFormat.SubjectPublicKeyInfo)
key_str = pem.decode() # type: str
key_str = key_str[len(_PUBLIC_BEGIN_TAG):] # remove being tag
key_str = key_str[:-(len(_PUBLIC_END_TAG) + 1)] # remove end tag
key_str = key_str.replace("\n", "") # remove new lines
return key_str
def serialize_pubkey(public_key: rsa.RSAPublicKey) -> bytes:
"""
Encode an RSA public key into the DER format.
"""
return public_key.public_bytes(serialization.Encoding.DER,
serialization.PublicFormat.SubjectPublicKeyInfo)
def rsa_pub_key_to_str(public_key: rsa.RSAPublicKey) -> str:
""" return RSA public key as string - PEM format """
return public_key.public_bytes(
encoding=serialization.Encoding.OpenSSH,
format=serialization.PublicFormat.OpenSSH
).decode()
def _public_key_to_bytes(public_key: rsa.RSAPublicKey) -> bytes:
return public_key.public_bytes(
encoding=serialization.Encoding.PEM,
format=serialization.PublicFormat.SubjectPublicKeyInfo,
)
