def test_rsa_decryption(self):
dataSet = self.rsaKeyTestData
pkcs8 = base64.b64decode(dataSet.privateKeyPkcs8Unencrypted)
key = TpmPrivateKey()
key.loadPkcs8(pkcs8)
plainText = Blob([0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07])
cipherTextBase64 = (
"i2XNpZ2JbLa4JmBTdDrGmsd4/0C+p+BSCpW3MuPBNe5uChQ0eRO1dvjTnEqwSECY\n"
+
"38en9JZwcyb0It/TSFNXHlq+Z1ZpffnjIJxQR9HcgwvwQJh6WRH0vu38tvGkGuNv\n"
+
"60Rdn85hqSy1CikmXCeWXL9yCqeqcP21R94G/T3FuA+c1FtFko8KOzCwvrTXMO6n\n"
+
"5PNsqlLXabSGr+jz4EwOsSCgPkiDf9U6tXoSPRA2/YvqFQdaiUXIVlomESvaqqZ8\n"
+
"FxPs2BON0lobM8gT+xdzbRKofp+rNjNK+5uWyeOnXJwzCszh17cdJl2BH1dZwaVD\n"
+ "PmTiSdeDQXZ94U5boDQ4Aw==\n")
cipherText = base64.b64decode(cipherTextBase64)
decryptedText = key.decrypt(cipherText)
self.assertTrue(decryptedText.equals(plainText))
def decrypt(keyBits, encryptedData, params):
"""
Decrypt the encryptedData using the keyBits according the encrypt params.
:param Blob keyBits: The key value (PKCS8-encoded private key).
:param Blob encryptedData: The data to decrypt.
:param EncryptParams params: This decrypts according to
params.getAlgorithmType().
:return: The decrypted data.
:rtype: Blob
"""
privateKey = TpmPrivateKey()
privateKey.loadPkcs8(keyBits.toBytes())
return privateKey.decrypt(
encryptedData.toBytes(), params.getAlgorithmType())
def decrypt(keyBits, encryptedData, params):
"""
Decrypt the encryptedData using the keyBits according the encrypt params.
:param Blob keyBits: The key value (PKCS8-encoded private key).
:param Blob encryptedData: The data to decrypt.
:param EncryptParams params: This decrypts according to
params.getAlgorithmType().
:return: The decrypted data.
:rtype: Blob
"""
privateKey = TpmPrivateKey()
privateKey.loadPkcs8(keyBits.toBytes())
return privateKey.decrypt(encryptedData.toBytes(),
params.getAlgorithmType())
def test_rsa_decryption(self):
dataSet = self.rsaKeyTestData
pkcs8 = base64.b64decode(dataSet.privateKeyPkcs8Unencrypted)
key = TpmPrivateKey()
key.loadPkcs8(pkcs8)
plainText = Blob([0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07])
cipherTextBase64 = (
"i2XNpZ2JbLa4JmBTdDrGmsd4/0C+p+BSCpW3MuPBNe5uChQ0eRO1dvjTnEqwSECY\n" +
"38en9JZwcyb0It/TSFNXHlq+Z1ZpffnjIJxQR9HcgwvwQJh6WRH0vu38tvGkGuNv\n" +
"60Rdn85hqSy1CikmXCeWXL9yCqeqcP21R94G/T3FuA+c1FtFko8KOzCwvrTXMO6n\n" +
"5PNsqlLXabSGr+jz4EwOsSCgPkiDf9U6tXoSPRA2/YvqFQdaiUXIVlomESvaqqZ8\n" +
"FxPs2BON0lobM8gT+xdzbRKofp+rNjNK+5uWyeOnXJwzCszh17cdJl2BH1dZwaVD\n" +
"PmTiSdeDQXZ94U5boDQ4Aw==\n")
cipherText = base64.b64decode(cipherTextBase64)
decryptedText = key.decrypt(cipherText)
self.assertTrue(decryptedText.equals(plainText))
