def getKeyPair(pubkeyfile, privkeyfile):
"""
This function looks for RSA keypair files in the current directory. If they
do not exist, the keypair is created.
"""
if not (os.path.exists(pubkeyfile) and os.path.exists(privkeyfile)):
# No keypair exists. Generate a new RSA keypair
print(" Generating SSH RSA keypair ...", end=' ')
from Crypto.PublicKey import RSA
KEY_LENGTH = 1024
rsaKey = Key(RSA.generate(KEY_LENGTH))
publicKeyString = rsaKey.public().toString(type="OPENSSH")
privateKeyString = rsaKey.toString(type="OPENSSH")
# save keys for the future.
file(pubkeyfile, 'w+b').write(publicKeyString)
file(privkeyfile, 'w+b').write(privateKeyString)
print(" done.")
else:
publicKeyString = file(pubkeyfile).read()
privateKeyString = file(privkeyfile).read()
return Key.fromString(publicKeyString), Key.fromString(privateKeyString)
def getKeyPair(pubkeyfile, privkeyfile):
"""
This function looks for RSA keypair files in the current directory. If they
do not exist, the keypair is created.
"""
if not (os.path.exists(pubkeyfile) and os.path.exists(privkeyfile)):
# No keypair exists. Generate a new RSA keypair
print(" Generating SSH RSA keypair ...", end=' ')
from Crypto.PublicKey import RSA
KEY_LENGTH = 1024
rsaKey = Key(RSA.generate(KEY_LENGTH))
publicKeyString = rsaKey.public().toString(type="OPENSSH")
privateKeyString = rsaKey.toString(type="OPENSSH")
# save keys for the future.
file(pubkeyfile, 'w+b').write(publicKeyString)
file(privkeyfile, 'w+b').write(privateKeyString)
print(" done.")
else:
publicKeyString = file(pubkeyfile).read()
privateKeyString = file(privkeyfile).read()
return Key.fromString(publicKeyString), Key.fromString(privateKeyString)
def getKeyPair(pubkeyfile, privkeyfile):
"""
This function looks for RSA keypair files in the current directory. If they
do not exist, the keypair is created.
"""
if not (os.path.exists(pubkeyfile) and os.path.exists(privkeyfile)):
# No keypair exists. Generate a new RSA keypair
from Crypto.PublicKey import RSA
rsa_key = Key(RSA.generate(_KEY_LENGTH))
public_key_string = rsa_key.public().toString(type="OPENSSH")
private_key_string = rsa_key.toString(type="OPENSSH")
# save keys for the future.
with open(privkeyfile, 'wt') as pfile:
pfile.write(private_key_string)
print("Created SSH private key in '{}'".format(_PRIVATE_KEY_FILE))
with open(pubkeyfile, 'wt') as pfile:
pfile.write(public_key_string)
print("Created SSH public key in '{}'".format(_PUBLIC_KEY_FILE))
else:
with open(pubkeyfile) as pfile:
public_key_string = pfile.read()
with open(privkeyfile) as pfile:
private_key_string = pfile.read()
return Key.fromString(public_key_string), Key.fromString(private_key_string)
def getKeyPair(pubkeyfile, privkeyfile):
"""
This function looks for RSA keypair files in the current directory. If they
do not exist, the keypair is created.
"""
if not (os.path.exists(pubkeyfile) and os.path.exists(privkeyfile)):
# No keypair exists. Generate a new RSA keypair
from Crypto.PublicKey import RSA
rsa_key = Key(RSA.generate(_KEY_LENGTH))
public_key_string = rsa_key.public().toString(type="OPENSSH")
private_key_string = rsa_key.toString(type="OPENSSH")
# save keys for the future.
with open(privkeyfile, 'wt') as pfile:
pfile.write(private_key_string)
print("Created SSH private key in '{}'".format(_PRIVATE_KEY_FILE))
with open(pubkeyfile, 'wt') as pfile:
pfile.write(public_key_string)
print("Created SSH public key in '{}'".format(_PUBLIC_KEY_FILE))
else:
with open(pubkeyfile) as pfile:
public_key_string = pfile.read()
with open(privkeyfile) as pfile:
private_key_string = pfile.read()
return Key.fromString(public_key_string), Key.fromString(
private_key_string)
def getKeyPair(pubkeyfile, privkeyfile):
"""
This function looks for RSA keypair files in the current directory. If they
do not exist, the keypair is created.
"""
if not (os.path.exists(pubkeyfile) and os.path.exists(privkeyfile)):
# No keypair exists. Generate a new RSA keypair
from cryptography.hazmat.backends import default_backend
from cryptography.hazmat.primitives.asymmetric import rsa
rsa_key = Key(
rsa.generate_private_key(public_exponent=65537,
key_size=_KEY_LENGTH,
backend=default_backend()))
public_key_string = rsa_key.public().toString(type="OPENSSH").decode()
private_key_string = rsa_key.toString(type="OPENSSH").decode()
# save keys for the future.
with open(privkeyfile, "wt") as pfile:
pfile.write(private_key_string)
print("Created SSH private key in '{}'".format(_PRIVATE_KEY_FILE))
with open(pubkeyfile, "wt") as pfile:
pfile.write(public_key_string)
print("Created SSH public key in '{}'".format(_PUBLIC_KEY_FILE))
else:
with open(pubkeyfile) as pfile:
public_key_string = pfile.read()
with open(privkeyfile) as pfile:
private_key_string = pfile.read()
return Key.fromString(public_key_string), Key.fromString(
private_key_string)
