def generate_key_pair(key_length=2048):
"""Create RSA key pair with specified number of bits in key.
Returns tuple of private and public keys.
"""
with tempfiles.tempdir() as tmpdir:
keyfile = os.path.join(tmpdir, 'tempkey')
# The key is generated in the old PEM format, instead of the native
# format of OpenSSH >=6.5, because paramiko does not support it:
# https://github.com/paramiko/paramiko/issues/602
args = [
'ssh-keygen',
'-q', # quiet
'-N', '', # w/o passphrase
'-m', 'PEM', # old PEM format
'-t', 'rsa', # create key of rsa type
'-f', keyfile, # filename of the key file
'-C', 'Generated-by-Sahara' # key comment
]
if key_length is not None:
args.extend(['-b', key_length])
processutils.execute(*args)
if not os.path.exists(keyfile):
raise ex.SystemError(_("Private key file hasn't been created"))
with open(keyfile) as keyfile_fd:
private_key = keyfile_fd.read()
public_key_path = keyfile + '.pub'
if not os.path.exists(public_key_path):
raise ex.SystemError(_("Public key file hasn't been created"))
with open(public_key_path) as public_key_path_fd:
public_key = public_key_path_fd.read()
return private_key, public_key
def generate_key_pair(key_length=2048):
"""Create RSA key pair with specified number of bits in key.
Returns tuple of private and public keys.
"""
with tempfiles.tempdir() as tmpdir:
keyfile = os.path.join(tmpdir, 'tempkey')
args = [
'ssh-keygen',
'-q', # quiet
'-N', '', # w/o passphrase
'-t', 'rsa', # create key of rsa type
'-f', keyfile, # filename of the key file
'-C', 'Generated by Sahara' # key comment
]
if key_length is not None:
args.extend(['-b', key_length])
processutils.execute(*args)
if not os.path.exists(keyfile):
raise ex.SystemError("Private key file hasn't been created")
private_key = open(keyfile).read()
public_key_path = keyfile + '.pub'
if not os.path.exists(public_key_path):
raise ex.SystemError("Public key file hasn't been created")
public_key = open(public_key_path).read()
return private_key, public_key
def generate_key_pair(key_length=2048):
"""Create RSA key pair with specified number of bits in key.
Returns tuple of private and public keys.
"""
with tempfiles.tempdir() as tmpdir:
keyfile = os.path.join(tmpdir, "tempkey")
args = [
"ssh-keygen",
"-q", # quiet
"-N",
"", # w/o passphrase
"-t",
"rsa", # create key of rsa type
"-f",
keyfile, # filename of the key file
"-C",
"Generated-by-Sahara", # key comment
]
if key_length is not None:
args.extend(["-b", key_length])
processutils.execute(*args)
if not os.path.exists(keyfile):
raise ex.SystemError(_("Private key file hasn't been created"))
with open(keyfile) as keyfile_fd:
private_key = keyfile_fd.read()
public_key_path = keyfile + ".pub"
if not os.path.exists(public_key_path):
raise ex.SystemError(_("Public key file hasn't been created"))
with open(public_key_path) as public_key_path_fd:
public_key = public_key_path_fd.read()
return private_key, public_key