def generateCertificateForKey(self, keyName):
# let any raised SecurityExceptions bubble up
publicKeyBits = self._identityStorage.getKey(keyName)
publicKeyType = self._identityStorage.getKeyType(keyName)
publicKey = PublicKey(publicKeyType, publicKeyBits)
timestamp = Common.getNowMilliseconds()
# TODO: specify where the 'KEY' component is inserted
# to delegate responsibility for cert delivery
certificateName = keyName.getPrefix(-1).append('KEY').append(keyName.get(-1))
certificateName.append("ID-CERT").append(Name.Component(struct.pack(">Q", timestamp)))
certificate = IdentityCertificate(certificateName)
certificate.setNotBefore(timestamp)
certificate.setNotAfter((timestamp + 30*86400*1000)) # about a month
certificate.setPublicKeyInfo(publicKey)
# ndnsec likes to put the key name in a subject description
sd = CertificateSubjectDescription("2.5.4.41", keyName.toUri())
certificate.addSubjectDescription(sd)
certificate.encode()
return certificate
def _generateCertificateForKey(self, keyName):
# Let any raised SecurityExceptions bubble up.
publicKeyBits = self._identityStorage.getKey(keyName)
publicKey = PublicKey(publicKeyBits)
timestamp = Common.getNowMilliseconds()
# TODO: Specify where the 'KEY' component is inserted
# to delegate responsibility for cert delivery.
# cf: http://redmine.named-data.net/issues/1659
certificateName = keyName.getPrefix(-1).append('KEY').append(
keyName.get(-1))
certificateName.append("ID-CERT").appendVersion(int(timestamp))
certificate = IdentityCertificate()
certificate.setName(certificateName)
certificate.setNotBefore(timestamp)
certificate.setNotAfter(
(timestamp + 2 * 365 * 24 * 3600 * 1000)) # about 2 years.
certificate.setPublicKeyInfo(publicKey)
# ndnsec likes to put the key name in a subject description.
sd = CertificateSubjectDescription("2.5.4.41", keyName.toUri())
certificate.addSubjectDescription(sd)
certificate.encode()
return certificate
def _generateCertificateForKey(self, keyName):
# Let any raised SecurityExceptions bubble up.
publicKeyBits = self._identityStorage.getKey(keyName)
publicKey = PublicKey(publicKeyBits)
timestamp = Common.getNowMilliseconds()
# TODO: Specify where the 'KEY' component is inserted
# to delegate responsibility for cert delivery.
# cf: http://redmine.named-data.net/issues/1659
certificateName = keyName.getPrefix(-1).append('KEY').append(keyName.get(-1))
certificateName.append("ID-CERT").appendVersion(int(timestamp))
certificate = IdentityCertificate()
certificate.setName(certificateName)
certificate.setNotBefore(timestamp)
certificate.setNotAfter((timestamp + 2*365*24*3600*1000)) # about 2 years.
certificate.setPublicKeyInfo(publicKey)
# ndnsec likes to put the key name in a subject description.
sd = CertificateSubjectDescription("2.5.4.41", keyName.toUri())
certificate.addSubjectDescription(sd)
certificate.encode()
return certificate
def generateCertificateForKey(self, keyName):
# let any raised SecurityExceptions bubble up
publicKeyBits = self._identityStorage.getKey(keyName)
publicKeyType = self._identityStorage.getKeyType(keyName)
publicKey = PublicKey(publicKeyType, publicKeyBits)
timestamp = Common.getNowMilliseconds()
# TODO: specify where the 'KEY' component is inserted
# to delegate responsibility for cert delivery
certificateName = keyName.getPrefix(-1).append('KEY').append(
keyName.get(-1))
certificateName.append("ID-CERT").append(
Name.Component(struct.pack(">Q", timestamp)))
certificate = IdentityCertificate(certificateName)
certificate.setNotBefore(timestamp)
certificate.setNotAfter(
(timestamp + 30 * 86400 * 1000)) # about a month
certificate.setPublicKeyInfo(publicKey)
# ndnsec likes to put the key name in a subject description
sd = CertificateSubjectDescription("2.5.4.41", keyName.toUri())
certificate.addSubjectDescription(sd)
certificate.encode()
return certificate
def prepareUnsignedIdentityCertificate(self,
keyName,
publicKey,
signingIdentity,
notBefore,
notAfter,
subjectDescription=None,
certPrefix=None):
"""
Prepare an unsigned identity certificate.
:param Name keyName: The key name, e.g., `/{identity_name}/ksk-123456`.
:param PublicKey publicKey: (optional) The public key to sign. If
ommited, use the keyName to get the public key from the identity
storage.
:param Name signingIdentity: The signing identity.
:param float notBefore: See IdentityCertificate.
:param float notAfter: See IdentityCertificate.
:param Array<CertificateSubjectDescription> subjectDescription: A list
of CertificateSubjectDescription. See IdentityCertificate. If None or
empty, this adds a an ATTRIBUTE_NAME based on the keyName.
:param Name certPrefix: (optional) The prefix before the `KEY`
component. If None, this infers the certificate name according to the
relation between the signingIdentity and the subject identity. If the
signingIdentity is a prefix of the subject identity, `KEY` will be
inserted after the signingIdentity, otherwise `KEY` is inserted after
subject identity (i.e., before `ksk-...`).
:return: The unsigned IdentityCertificate, or None if the inputs are
invalid.
:rtype: IdentityCertificate
"""
if not isinstance(publicKey, PublicKey):
# The publicKey was omitted. Shift arguments.
certPrefix = subjectDescription
subjectDescription = notAfter
notAfter = notBefore
notBefore = signingIdentity
signingIdentity = publicKey
publicKey = PublicKey(self._identityStorage.getKey(keyName))
if keyName.size() < 1:
return None
tempKeyIdPrefix = keyName.get(-1).toEscapedString()
if len(tempKeyIdPrefix) < 4:
return None
keyIdPrefix = tempKeyIdPrefix[0:4]
if keyIdPrefix != "ksk-" and keyIdPrefix != "dsk-":
return None
certificate = IdentityCertificate()
certName = Name()
if certPrefix == None:
# No certificate prefix hint, so infer the prefix.
if signingIdentity.match(keyName):
certName.append(signingIdentity) \
.append("KEY") \
.append(keyName.getSubName(signingIdentity.size())) \
.append("ID-CERT") \
.appendVersion(int(Common.getNowMilliseconds()))
else:
certName.append(keyName.getPrefix(-1)) \
.append("KEY") \
.append(keyName.get(-1)) \
.append("ID-CERT") \
.appendVersion(int(Common.getNowMilliseconds()))
else:
# A cert prefix hint is supplied, so determine the cert name.
if certPrefix.match(keyName) and not certPrefix.equals(keyName):
certName.append(certPrefix) \
.append("KEY") \
.append(keyName.getSubName(certPrefix.size())) \
.append("ID-CERT") \
.appendVersion(int(Common.getNowMilliseconds()))
else:
return None
certificate.setName(certName)
certificate.setNotBefore(notBefore)
certificate.setNotAfter(notAfter)
certificate.setPublicKeyInfo(publicKey)
if subjectDescription == None or len(subjectDescription) == 0:
certificate.addSubjectDescription(
CertificateSubjectDescription("2.5.4.41",
keyName.getPrefix(-1).toUri()))
else:
for i in range(len(subjectDescription)):
certificate.addSubjectDescription(subjectDescription[i])
try:
certificate.encode()
except Exception as ex:
raise SecurityException("DerEncodingException: " + str(ex))
return certificate
def prepareUnsignedIdentityCertificate(self, keyName, publicKey,
signingIdentity, notBefore, notAfter, subjectDescription = None,
certPrefix = None):
"""
Prepare an unsigned identity certificate.
:param Name keyName: The key name, e.g., `/{identity_name}/ksk-123456`.
:param PublicKey publicKey: (optional) The public key to sign. If
ommited, use the keyName to get the public key from the identity
storage.
:param Name signingIdentity: The signing identity.
:param float notBefore: See IdentityCertificate.
:param float notAfter: See IdentityCertificate.
:param Array<CertificateSubjectDescription> subjectDescription: A list
of CertificateSubjectDescription. See IdentityCertificate. If None or
empty, this adds a an ATTRIBUTE_NAME based on the keyName.
:param Name certPrefix: (optional) The prefix before the `KEY`
component. If None, this infers the certificate name according to the
relation between the signingIdentity and the subject identity. If the
signingIdentity is a prefix of the subject identity, `KEY` will be
inserted after the signingIdentity, otherwise `KEY` is inserted after
subject identity (i.e., before `ksk-...`).
:return: The unsigned IdentityCertificate, or None if the inputs are
invalid.
:rtype: IdentityCertificate
"""
if not isinstance(publicKey, PublicKey):
# The publicKey was omitted. Shift arguments.
certPrefix = subjectDescription
subjectDescription = notAfter
notAfter = notBefore
notBefore = signingIdentity
signingIdentity = publicKey
publicKey = PublicKey(self._identityStorage.getKey(keyName))
if keyName.size() < 1:
return None
tempKeyIdPrefix = keyName.get(-1).toEscapedString()
if len(tempKeyIdPrefix) < 4:
return None
keyIdPrefix = tempKeyIdPrefix[0:4]
if keyIdPrefix != "ksk-" and keyIdPrefix != "dsk-":
return None
certificate = IdentityCertificate()
certName = Name()
if certPrefix == None:
# No certificate prefix hint, so infer the prefix.
if signingIdentity.match(keyName):
certName.append(signingIdentity) \
.append("KEY") \
.append(keyName.getSubName(signingIdentity.size())) \
.append("ID-CERT") \
.appendVersion(int(Common.getNowMilliseconds()))
else:
certName.append(keyName.getPrefix(-1)) \
.append("KEY") \
.append(keyName.get(-1)) \
.append("ID-CERT") \
.appendVersion(int(Common.getNowMilliseconds()))
else:
# A cert prefix hint is supplied, so determine the cert name.
if certPrefix.match(keyName) and not certPrefix.equals(keyName):
certName.append(certPrefix) \
.append("KEY") \
.append(keyName.getSubName(certPrefix.size())) \
.append("ID-CERT") \
.appendVersion(int(Common.getNowMilliseconds()))
else:
return None
certificate.setName(certName)
certificate.setNotBefore(notBefore)
certificate.setNotAfter(notAfter)
certificate.setPublicKeyInfo(publicKey)
if subjectDescription == None or len(subjectDescription) == 0:
certificate.addSubjectDescription(CertificateSubjectDescription(
"2.5.4.41", keyName.getPrefix(-1).toUri()))
else:
for i in range(len(subjectDescription)):
certificate.addSubjectDescription(subjectDescription[i])
try:
certificate.encode()
except Exception as ex:
raise SecurityException("DerEncodingException: " + str(ex))
return certificate
