def ec2_keypair_fingerprint(ssh_key, reject_private_keys=False):
"""
Computes the fingerrint of a public or private OpenSSH key in the way Amazon does it for
keypairs resulting from either importing a SSH public key or generating a new keypair.
:param ssh_key: a RSA public key in OpenSSH format, or an RSA private key in PEM format
:return: The fingerprint of the key, in pairs of two hex digits with a colon between
pairs.
>>> ssh_pubkey = 'ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCvdDMvcwC1/5ByUhO1wh1sG6ficwgGHRab/p'\\
... 'm6LN60rgxv+u2eJRao2esGB9Oyt863+HnjKj/NBdaiHTHcAHNq/TapbvEjgHaKgrVdfeMdQbJhWjJ97rql9Yn8k'\\
... 'TNsXOeSyTW7rIKE0zeQkrwhsztmATumbQmJUMR7uuI31BxhQUfD/CoGZQrxFalWLDZcrcYY13ynplaNA/Hd/vP6'\\
... 'qWO5WC0dTvzROEp7VwzJ7qeN2kP1JTh+kgVRoYd9mSm6x9UVjY6jQtZHa01Eg05sFraWgvNAvKhk9LS9Kiwhq8D'\\
... 'xHdWdTamnGLtwXYQbn7RjG3UADAiTOWk+QSmU2igZvQ2F [email protected]\\n'
>>> ec2_keypair_fingerprint(ssh_pubkey)
'a5:5a:64:8a:1e:3f:4e:46:cd:1f:e9:b3:fc:cf:c5:19'
>>> # This is not a private key that is in use, in case you were wondering
>>> ssh_private_key = \\
... '-----BEGIN RSA PRIVATE KEY-----\\n'+\\
... 'MIIEpQIBAAKCAQEAi3shPK00+/6dwW8u+iDkUYiwIKl/lv0Ay5IstLszwb3CA4mVRlyq769HzE8f\\n'\\
... 'cnzQUX/NI8y9MTO0UNt2JDMJWW5L49jmvxV0TjxQjKg8KcNzYuHsEny3k8LxezWMsmwlrrC89O6e\\n'\\
... 'oo6boc8ForSdjVdIlJbvWu/82dThyFgTjWd5B+1O93xw8/ejqY9PfZExBeqpKjm58OUByTpVhvWe\\n'\\
... 'jmbZ9BL60XJhwz9bDTrlKpjcGsMZ74G6XfQAhyyqXYeD/XOercCSJgQ/QjYKcPE9yMRyucHyuYZ8\\n'\\
... 'HKzmG+u4p5ffnFb43tKzWCI330JQcklhGTldyqQHDWA41mT1QMoWfwIDAQABAoIBAF50gryRWykv\\n'\\
... 'cuuUfI6ciaGBXCyyPBomuUwicC3v/Au+kk1M9Y7RoFxyKb/88QHZ7kTStDwDITfZmMmM5QN8oF80\\n'\\
... 'pyXkM9bBE6MLi0zFfQCXQGN9NR4L4VGqGVfjmqUVQat8Omnv0fOpeVFpXZqij3Mw4ZDmaa7+iA+H\\n'\\
... '72J56ru9i9wcBNqt//Kh5BXARekp7tHzklYrlqJd03ftDRp9GTBIFAsaPClTBpnPVhwD/rAoJEhb\\n'\\
... 'KM9g/EMjQ28cUMQSHSwOyi9Rg/LtwFnER4u7pnBz2tbJFvLlXE96IQbksQL6/PTJ9H6Zpp+1fDcI\\n'\\
... 'k/MKSQZtQOgfV8V1wlvHX+Q0bxECgYEA4LHj6o4usINnSy4cf6BRLrCA9//ePa8UjEK2YDC5rQRV\\n'\\
... 'huFWqWJJSjWI9Ofjh8mZj8NvTJa9RW4d4Rn6F7upOuAer9obwfrmi4BEQSbvUwxQIuHOZ6itH/0L\\n'\\
... 'klqQBuhJeyr3W+2IhudJUQz9MEoddOfYIybXqkF7XzDl2x6FcjcCgYEAnunySmjt+983gUKK9DgK\\n'\\
... '/k1ki41jCAcFlGd8MbLEWkJpwt3FJFiyq6vVptoVH8MBnVAOjDneP6YyNBv5+zm3vyMuVJtKNcAP\\n'\\
... 'MAxrl5/gyIBHRxD+avoqpQX/17EmrFsbMaG8IM0ZWB2lSDt45sDvpmSlcTjzrHIEGoBbOzkOefkC\\n'\\
... 'gYEAgmS5bxSz45teBjLsNuRCOGYVcdX6krFXq03LqGaeWdl6CJwcPo/bGEWZBQbM86/6fYNcw4V2\\n'\\
... 'sSQGEuuQRtWQj6ogJMzd7uQ7hhkZgvWlTPyIRLXloiIw1a9zV6tWiaujeOamRaLC6AawdWikRbG9\\n'\\
... 'BmrE8yFHZnY5sjQeL9q2dmECgYEAgp5w1NCirGCxUsHLTSmzf4tFlZ9FQxficjUNVBxIYJguLkny\\n'\\
... '/Qka8xhuqJKgwlabQR7IlmIKV+7XXRWRx/mNGsJkFo791GhlE21iEmMLdEJcVAGX3X57BuGDhVrL\\n'\\
... 'GuhX1dfGtn9e0ZqsfE7F9YWodfBMPGA/igK9dLsEQg2H5KECgYEAvlv0cPHP8wcOL3g9eWIVCXtg\\n'\\
... 'aQ+KiDfk7pihLnHTJVZqXuy0lFD+O/TqxGOOQS/G4vBerrjzjCXXXxi2FN0kDJhiWlRHIQALl6rl\\n'\\
... 'i2LdKfL1sk1IA5PYrj+LmBuOLpsMHnkoH+XRJWUJkLvowaJ0aSengQ2AD+icrc/EIrpcdjU=\\n'+\\
... '-----END RSA PRIVATE KEY-----\\n'
>>> ec2_keypair_fingerprint(ssh_private_key)
'ac:23:ae:c3:9a:a3:78:b1:0f:8a:31:dd:13:cc:b1:8e:fb:51:42:f8'
"""
rsa_key = RSA.importKey(ssh_key)
is_private_key = rsa_key.has_private()
if is_private_key and reject_private_keys:
raise ValueError('Private keys are disallowed')
der_rsa_key = rsa_key.exportKey(format='DER',
pkcs=(8 if is_private_key else 1))
key_hash = (hashlib.sha1 if is_private_key else hashlib.md5)(der_rsa_key)
return ':'.join(partition_seq(key_hash.hexdigest(), 2))
def ec2_keypair_fingerprint( ssh_key, reject_private_keys=False ):
"""
Computes the fingerrint of a public or private OpenSSH key in the way Amazon does it for
keypairs resulting from either importing a SSH public key or generating a new keypair.
:param ssh_key: a RSA public key in OpenSSH format, or an RSA private key in PEM format
:return: The fingerprint of the key, in pairs of two hex digits with a colon between
pairs.
>>> ssh_pubkey = 'ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCvdDMvcwC1/5ByUhO1wh1sG6ficwgGHRab/p'\\
... 'm6LN60rgxv+u2eJRao2esGB9Oyt863+HnjKj/NBdaiHTHcAHNq/TapbvEjgHaKgrVdfeMdQbJhWjJ97rql9Yn8k'\\
... 'TNsXOeSyTW7rIKE0zeQkrwhsztmATumbQmJUMR7uuI31BxhQUfD/CoGZQrxFalWLDZcrcYY13ynplaNA/Hd/vP6'\\
... 'qWO5WC0dTvzROEp7VwzJ7qeN2kP1JTh+kgVRoYd9mSm6x9UVjY6jQtZHa01Eg05sFraWgvNAvKhk9LS9Kiwhq8D'\\
... 'xHdWdTamnGLtwXYQbn7RjG3UADAiTOWk+QSmU2igZvQ2F [email protected]\\n'
>>> ec2_keypair_fingerprint(ssh_pubkey)
'a5:5a:64:8a:1e:3f:4e:46:cd:1f:e9:b3:fc:cf:c5:19'
>>> # This is not a private key that is in use, in case you were wondering
>>> ssh_private_key = \\
... '-----BEGIN RSA PRIVATE KEY-----\\n'+\\
... 'MIIEpQIBAAKCAQEAi3shPK00+/6dwW8u+iDkUYiwIKl/lv0Ay5IstLszwb3CA4mVRlyq769HzE8f\\n'\\
... 'cnzQUX/NI8y9MTO0UNt2JDMJWW5L49jmvxV0TjxQjKg8KcNzYuHsEny3k8LxezWMsmwlrrC89O6e\\n'\\
... 'oo6boc8ForSdjVdIlJbvWu/82dThyFgTjWd5B+1O93xw8/ejqY9PfZExBeqpKjm58OUByTpVhvWe\\n'\\
... 'jmbZ9BL60XJhwz9bDTrlKpjcGsMZ74G6XfQAhyyqXYeD/XOercCSJgQ/QjYKcPE9yMRyucHyuYZ8\\n'\\
... 'HKzmG+u4p5ffnFb43tKzWCI330JQcklhGTldyqQHDWA41mT1QMoWfwIDAQABAoIBAF50gryRWykv\\n'\\
... 'cuuUfI6ciaGBXCyyPBomuUwicC3v/Au+kk1M9Y7RoFxyKb/88QHZ7kTStDwDITfZmMmM5QN8oF80\\n'\\
... 'pyXkM9bBE6MLi0zFfQCXQGN9NR4L4VGqGVfjmqUVQat8Omnv0fOpeVFpXZqij3Mw4ZDmaa7+iA+H\\n'\\
... '72J56ru9i9wcBNqt//Kh5BXARekp7tHzklYrlqJd03ftDRp9GTBIFAsaPClTBpnPVhwD/rAoJEhb\\n'\\
... 'KM9g/EMjQ28cUMQSHSwOyi9Rg/LtwFnER4u7pnBz2tbJFvLlXE96IQbksQL6/PTJ9H6Zpp+1fDcI\\n'\\
... 'k/MKSQZtQOgfV8V1wlvHX+Q0bxECgYEA4LHj6o4usINnSy4cf6BRLrCA9//ePa8UjEK2YDC5rQRV\\n'\\
... 'huFWqWJJSjWI9Ofjh8mZj8NvTJa9RW4d4Rn6F7upOuAer9obwfrmi4BEQSbvUwxQIuHOZ6itH/0L\\n'\\
... 'klqQBuhJeyr3W+2IhudJUQz9MEoddOfYIybXqkF7XzDl2x6FcjcCgYEAnunySmjt+983gUKK9DgK\\n'\\
... '/k1ki41jCAcFlGd8MbLEWkJpwt3FJFiyq6vVptoVH8MBnVAOjDneP6YyNBv5+zm3vyMuVJtKNcAP\\n'\\
... 'MAxrl5/gyIBHRxD+avoqpQX/17EmrFsbMaG8IM0ZWB2lSDt45sDvpmSlcTjzrHIEGoBbOzkOefkC\\n'\\
... 'gYEAgmS5bxSz45teBjLsNuRCOGYVcdX6krFXq03LqGaeWdl6CJwcPo/bGEWZBQbM86/6fYNcw4V2\\n'\\
... 'sSQGEuuQRtWQj6ogJMzd7uQ7hhkZgvWlTPyIRLXloiIw1a9zV6tWiaujeOamRaLC6AawdWikRbG9\\n'\\
... 'BmrE8yFHZnY5sjQeL9q2dmECgYEAgp5w1NCirGCxUsHLTSmzf4tFlZ9FQxficjUNVBxIYJguLkny\\n'\\
... '/Qka8xhuqJKgwlabQR7IlmIKV+7XXRWRx/mNGsJkFo791GhlE21iEmMLdEJcVAGX3X57BuGDhVrL\\n'\\
... 'GuhX1dfGtn9e0ZqsfE7F9YWodfBMPGA/igK9dLsEQg2H5KECgYEAvlv0cPHP8wcOL3g9eWIVCXtg\\n'\\
... 'aQ+KiDfk7pihLnHTJVZqXuy0lFD+O/TqxGOOQS/G4vBerrjzjCXXXxi2FN0kDJhiWlRHIQALl6rl\\n'\\
... 'i2LdKfL1sk1IA5PYrj+LmBuOLpsMHnkoH+XRJWUJkLvowaJ0aSengQ2AD+icrc/EIrpcdjU=\\n'+\\
... '-----END RSA PRIVATE KEY-----\\n'
>>> ec2_keypair_fingerprint(ssh_private_key)
'ac:23:ae:c3:9a:a3:78:b1:0f:8a:31:dd:13:cc:b1:8e:fb:51:42:f8'
"""
rsa_key = RSA.importKey( ssh_key )
is_private_key = rsa_key.has_private( )
if is_private_key and reject_private_keys:
raise ValueError( 'Private keys are disallowed' )
der_rsa_key = rsa_key.exportKey( format='DER', pkcs=(8 if is_private_key else 1) )
key_hash = (hashlib.sha1 if is_private_key else hashlib.md5)( der_rsa_key )
return ':'.join( partition_seq( key_hash.hexdigest( ), 2 ) )
def private_to_public_key( private_ssh_key ):
"""
Returns the public key in OpenSSH format (as used in the authorized_keys file) for a given
private RSA key in PEM format.
>>> ssh_private_key = \\
... '-----BEGIN RSA PRIVATE KEY-----\\n'+\\
... 'MIIEpQIBAAKCAQEAi3shPK00+/6dwW8u+iDkUYiwIKl/lv0Ay5IstLszwb3CA4mVRlyq769HzE8f\\n'+\\
... 'cnzQUX/NI8y9MTO0UNt2JDMJWW5L49jmvxV0TjxQjKg8KcNzYuHsEny3k8LxezWMsmwlrrC89O6e\\n'+\\
... 'oo6boc8ForSdjVdIlJbvWu/82dThyFgTjWd5B+1O93xw8/ejqY9PfZExBeqpKjm58OUByTpVhvWe\\n'+\\
... 'jmbZ9BL60XJhwz9bDTrlKpjcGsMZ74G6XfQAhyyqXYeD/XOercCSJgQ/QjYKcPE9yMRyucHyuYZ8\\n'+\\
... 'HKzmG+u4p5ffnFb43tKzWCI330JQcklhGTldyqQHDWA41mT1QMoWfwIDAQABAoIBAF50gryRWykv\\n'+\\
... 'cuuUfI6ciaGBXCyyPBomuUwicC3v/Au+kk1M9Y7RoFxyKb/88QHZ7kTStDwDITfZmMmM5QN8oF80\\n'+\\
... 'pyXkM9bBE6MLi0zFfQCXQGN9NR4L4VGqGVfjmqUVQat8Omnv0fOpeVFpXZqij3Mw4ZDmaa7+iA+H\\n'+\\
... '72J56ru9i9wcBNqt//Kh5BXARekp7tHzklYrlqJd03ftDRp9GTBIFAsaPClTBpnPVhwD/rAoJEhb\\n'+\\
... 'KM9g/EMjQ28cUMQSHSwOyi9Rg/LtwFnER4u7pnBz2tbJFvLlXE96IQbksQL6/PTJ9H6Zpp+1fDcI\\n'+\\
... 'k/MKSQZtQOgfV8V1wlvHX+Q0bxECgYEA4LHj6o4usINnSy4cf6BRLrCA9//ePa8UjEK2YDC5rQRV\\n'+\\
... 'huFWqWJJSjWI9Ofjh8mZj8NvTJa9RW4d4Rn6F7upOuAer9obwfrmi4BEQSbvUwxQIuHOZ6itH/0L\\n'+\\
... 'klqQBuhJeyr3W+2IhudJUQz9MEoddOfYIybXqkF7XzDl2x6FcjcCgYEAnunySmjt+983gUKK9DgK\\n'+\\
... '/k1ki41jCAcFlGd8MbLEWkJpwt3FJFiyq6vVptoVH8MBnVAOjDneP6YyNBv5+zm3vyMuVJtKNcAP\\n'+\\
... 'MAxrl5/gyIBHRxD+avoqpQX/17EmrFsbMaG8IM0ZWB2lSDt45sDvpmSlcTjzrHIEGoBbOzkOefkC\\n'+\\
... 'gYEAgmS5bxSz45teBjLsNuRCOGYVcdX6krFXq03LqGaeWdl6CJwcPo/bGEWZBQbM86/6fYNcw4V2\\n'+\\
... 'sSQGEuuQRtWQj6ogJMzd7uQ7hhkZgvWlTPyIRLXloiIw1a9zV6tWiaujeOamRaLC6AawdWikRbG9\\n'+\\
... 'BmrE8yFHZnY5sjQeL9q2dmECgYEAgp5w1NCirGCxUsHLTSmzf4tFlZ9FQxficjUNVBxIYJguLkny\\n'+\\
... '/Qka8xhuqJKgwlabQR7IlmIKV+7XXRWRx/mNGsJkFo791GhlE21iEmMLdEJcVAGX3X57BuGDhVrL\\n'+\\
... 'GuhX1dfGtn9e0ZqsfE7F9YWodfBMPGA/igK9dLsEQg2H5KECgYEAvlv0cPHP8wcOL3g9eWIVCXtg\\n'+\\
... 'aQ+KiDfk7pihLnHTJVZqXuy0lFD+O/TqxGOOQS/G4vBerrjzjCXXXxi2FN0kDJhiWlRHIQALl6rl\\n'+\\
... 'i2LdKfL1sk1IA5PYrj+LmBuOLpsMHnkoH+XRJWUJkLvowaJ0aSengQ2AD+icrc/EIrpcdjU=\\n'+\\
... '-----END RSA PRIVATE KEY-----\\n'
>>> ssh_pubkey = 'ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCLeyE8rTT7/p3Bby76IORRiLA'\\
... 'gqX+W/QDLkiy0uzPBvcIDiZVGXKrvr0fMTx9yfNBRf80jzL0xM7RQ23YkMwlZbkvj2Oa/FXROPFC'\\
... 'MqDwpw3Ni4ewSfLeTwvF7NYyybCWusLz07p6ijpuhzwWitJ2NV0iUlu9a7/zZ1OHIWBONZ3kH7U7'\\
... '3fHDz96Opj099kTEF6qkqObnw5QHJOlWG9Z6OZtn0EvrRcmHDP1sNOuUqmNwawxnvgbpd9ACHLKp'\\
... 'dh4P9c56twJImBD9CNgpw8T3IxHK5wfK5hnwcrOYb67inl9+cVvje0rNYIjffQlBySWEZOV3KpAc'\\
... 'NYDjWZPVAyhZ/'
>>> private_to_public_key(ssh_private_key) == ssh_pubkey
True
"""
rsa_key = RSA.importKey( private_ssh_key )
if rsa_key.has_private( ):
return rsa_key.publickey( ).exportKey( format='OpenSSH' )
else:
raise ValueError( 'Expected private key' )
def private_to_public_key(private_ssh_key):
"""
Returns the public key in OpenSSH format (as used in the authorized_keys file) for a given
private RSA key in PEM format.
>>> ssh_private_key = \\
... '-----BEGIN RSA PRIVATE KEY-----\\n'+\\
... 'MIIEpQIBAAKCAQEAi3shPK00+/6dwW8u+iDkUYiwIKl/lv0Ay5IstLszwb3CA4mVRlyq769HzE8f\\n'+\\
... 'cnzQUX/NI8y9MTO0UNt2JDMJWW5L49jmvxV0TjxQjKg8KcNzYuHsEny3k8LxezWMsmwlrrC89O6e\\n'+\\
... 'oo6boc8ForSdjVdIlJbvWu/82dThyFgTjWd5B+1O93xw8/ejqY9PfZExBeqpKjm58OUByTpVhvWe\\n'+\\
... 'jmbZ9BL60XJhwz9bDTrlKpjcGsMZ74G6XfQAhyyqXYeD/XOercCSJgQ/QjYKcPE9yMRyucHyuYZ8\\n'+\\
... 'HKzmG+u4p5ffnFb43tKzWCI330JQcklhGTldyqQHDWA41mT1QMoWfwIDAQABAoIBAF50gryRWykv\\n'+\\
... 'cuuUfI6ciaGBXCyyPBomuUwicC3v/Au+kk1M9Y7RoFxyKb/88QHZ7kTStDwDITfZmMmM5QN8oF80\\n'+\\
... 'pyXkM9bBE6MLi0zFfQCXQGN9NR4L4VGqGVfjmqUVQat8Omnv0fOpeVFpXZqij3Mw4ZDmaa7+iA+H\\n'+\\
... '72J56ru9i9wcBNqt//Kh5BXARekp7tHzklYrlqJd03ftDRp9GTBIFAsaPClTBpnPVhwD/rAoJEhb\\n'+\\
... 'KM9g/EMjQ28cUMQSHSwOyi9Rg/LtwFnER4u7pnBz2tbJFvLlXE96IQbksQL6/PTJ9H6Zpp+1fDcI\\n'+\\
... 'k/MKSQZtQOgfV8V1wlvHX+Q0bxECgYEA4LHj6o4usINnSy4cf6BRLrCA9//ePa8UjEK2YDC5rQRV\\n'+\\
... 'huFWqWJJSjWI9Ofjh8mZj8NvTJa9RW4d4Rn6F7upOuAer9obwfrmi4BEQSbvUwxQIuHOZ6itH/0L\\n'+\\
... 'klqQBuhJeyr3W+2IhudJUQz9MEoddOfYIybXqkF7XzDl2x6FcjcCgYEAnunySmjt+983gUKK9DgK\\n'+\\
... '/k1ki41jCAcFlGd8MbLEWkJpwt3FJFiyq6vVptoVH8MBnVAOjDneP6YyNBv5+zm3vyMuVJtKNcAP\\n'+\\
... 'MAxrl5/gyIBHRxD+avoqpQX/17EmrFsbMaG8IM0ZWB2lSDt45sDvpmSlcTjzrHIEGoBbOzkOefkC\\n'+\\
... 'gYEAgmS5bxSz45teBjLsNuRCOGYVcdX6krFXq03LqGaeWdl6CJwcPo/bGEWZBQbM86/6fYNcw4V2\\n'+\\
... 'sSQGEuuQRtWQj6ogJMzd7uQ7hhkZgvWlTPyIRLXloiIw1a9zV6tWiaujeOamRaLC6AawdWikRbG9\\n'+\\
... 'BmrE8yFHZnY5sjQeL9q2dmECgYEAgp5w1NCirGCxUsHLTSmzf4tFlZ9FQxficjUNVBxIYJguLkny\\n'+\\
... '/Qka8xhuqJKgwlabQR7IlmIKV+7XXRWRx/mNGsJkFo791GhlE21iEmMLdEJcVAGX3X57BuGDhVrL\\n'+\\
... 'GuhX1dfGtn9e0ZqsfE7F9YWodfBMPGA/igK9dLsEQg2H5KECgYEAvlv0cPHP8wcOL3g9eWIVCXtg\\n'+\\
... 'aQ+KiDfk7pihLnHTJVZqXuy0lFD+O/TqxGOOQS/G4vBerrjzjCXXXxi2FN0kDJhiWlRHIQALl6rl\\n'+\\
... 'i2LdKfL1sk1IA5PYrj+LmBuOLpsMHnkoH+XRJWUJkLvowaJ0aSengQ2AD+icrc/EIrpcdjU=\\n'+\\
... '-----END RSA PRIVATE KEY-----\\n'
>>> ssh_pubkey = 'ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCLeyE8rTT7/p3Bby76IORRiLA'\\
... 'gqX+W/QDLkiy0uzPBvcIDiZVGXKrvr0fMTx9yfNBRf80jzL0xM7RQ23YkMwlZbkvj2Oa/FXROPFC'\\
... 'MqDwpw3Ni4ewSfLeTwvF7NYyybCWusLz07p6ijpuhzwWitJ2NV0iUlu9a7/zZ1OHIWBONZ3kH7U7'\\
... '3fHDz96Opj099kTEF6qkqObnw5QHJOlWG9Z6OZtn0EvrRcmHDP1sNOuUqmNwawxnvgbpd9ACHLKp'\\
... 'dh4P9c56twJImBD9CNgpw8T3IxHK5wfK5hnwcrOYb67inl9+cVvje0rNYIjffQlBySWEZOV3KpAc'\\
... 'NYDjWZPVAyhZ/'
>>> private_to_public_key(ssh_private_key) == ssh_pubkey
True
"""
rsa_key = RSA.importKey(private_ssh_key)
if rsa_key.has_private():
return rsa_key.publickey().exportKey(format='OpenSSH')
else:
raise ValueError('Expected private key')