def makePublicKeyBlob(obj):
keyType = objectType(obj)
if keyType == 'ssh-rsa':
keyData = common.MP(obj.e) + common.MP(obj.n)
elif keyType == 'ssh-dss':
keyData = common.MP(obj.p)
keyData += common.MP(obj.q)
keyData += common.MP(obj.g)
keyData += common.MP(obj.y)
return common.NS(keyType) + keyData
def makePublicKeyString_openssh(obj, comment):
keyType = objectType(obj)
if keyType == 'ssh-rsa':
keyData = common.MP(obj.e) + common.MP(obj.n)
elif keyType == 'ssh-dss':
keyData = common.MP(obj.p)
keyData += common.MP(obj.q)
keyData += common.MP(obj.g)
keyData += common.MP(obj.y)
else:
raise BadKeyError('unknown key type %s' % keyType)
b64Data = base64.encodestring(common.NS(keyType) + keyData).replace(
'\n', '')
return '%s %s %s' % (keyType, b64Data, comment)
def printKey(obj):
"""
Pretty print a C{Crypto.PublicKey.pubkey.pubkey} object.
@type obj: C{Crypto.PublicKey.pubkey.pubkey}
"""
print '%s %s (%s bits)' % (objectType(obj), obj.hasprivate()
and 'Private Key' or 'Public Key', obj.size())
for k in obj.keydata:
if hasattr(obj, k):
print 'attr', k
by = common.MP(getattr(obj, k))[4:]
while by:
m = by[:15]
by = by[15:]
o = ''
for c in m:
o = o + '%02x:' % ord(c)
if len(m) < 15:
o = o[:-1]
print '\t' + o
def makePublicKeyString_lsh(obj):
keyType = objectType(obj)
if keyType == 'ssh-rsa':
keyData = sexpy.pack([[
'public-key',
[
'rsa-pkcs1-sha1', ['n', common.MP(obj.n)[4:]],
['e', common.MP(obj.e)[4:]]
]
]])
elif keyType == 'ssh-dss':
keyData = sexpy.pack([[
'public-key',
[
'dsa', ['p', common.MP(obj.p)[4:]],
['q', common.MP(obj.q)[4:]], ['g', common.MP(obj.g)[4:]],
['y', common.MP(obj.y)[4:]]
]
]])
else:
raise BadKeyError('bad keyType %s' % keyType)
return '{' + base64.encodestring(keyData).replace('\n', '') + '}'
def makePrivateKeyBlob(obj):
keyType = objectType(obj)
if keyType == 'ssh-rsa':
return common.NS(keyType) + common.MP(obj.n) + common.MP(obj.e) + \
common.MP(obj.d) + common.MP(obj.u) + common.MP(obj.q) + \
common.MP(obj.p)
elif keyType == 'ssh-dss':
return common.NS(keyType) + common.MP(obj.p) + common.MP(obj.q) + \
common.MP(obj.g) + common.MP(obj.y) + common.MP(obj.x)
else:
raise ValueError('trying to get blob for invalid key type: %s' %
keyType)
def makePrivateKeyString_lsh(obj, passphrase):
if passphrase:
raise BadKeyError("cannot encrypt to lsh format")
keyType = objectType(obj)
if keyType == 'ssh-rsa':
p, q = obj.p, obj.q
if p > q:
(p, q) = (q, p)
return sexpy.pack([[
'private-key',
[
'rsa-pkcs1', ['n', common.MP(obj.n)[4:]],
['e', common.MP(obj.e)[4:]], ['d', common.MP(obj.d)[4:]],
['p', common.MP(q)[4:]], ['q', common.MP(p)[4:]],
['a', common.MP(obj.d % (q - 1))[4:]],
['b', common.MP(obj.d % (p - 1))[4:]],
['c', common.MP(Util.number.inverse(p, q))[4:]]
]
]])
elif keyType == 'ssh-dss':
return sexpy.pack([[
'private-key',
[
'dsa', ['p', common.MP(obj.p)[4:]],
['q', common.MP(obj.q)[4:]], ['g', common.MP(obj.g)[4:]],
['y', common.MP(obj.y)[4:]], ['x', common.MP(obj.x)[4:]]
]
]])
else:
raise BadKeyError('bad keyType %s' % keyType)
