Ich kann die RSA -Verschlüsselung in Python und Kotlin nicht ausrichten ⇐ Python

[Anonymous]

Ich möchte die RSA-Verschlüsselung in meinen Server (Python Fastapi) und meine Android-App hinzufügen. Meine RSA -Versuche in Python und Kotlin werden jedoch nicht miteinander interoperieren. Python und die native Kryptographie in Kotlin. < /P>
Hier ist meine Python-Datei.

Code: Select all

import os, base64, re
from cryptography.hazmat.primitives.asymmetric import rsa, padding
from cryptography.hazmat.primitives import serialization, hashes
from cryptography.hazmat.backends import default_backend

if os.path.exists("private.key") and os.path.exists("public.key"):
print("Loading existing keys")
with open("private.key", "rb") as pkf, open("public.key", "rb") as kf:
pk = serialization.load_der_private_key(pkf.read(), None, default_backend())
k = serialization.load_der_public_key(kf.read(), default_backend())
else:
print("Generating new keys")
pk = rsa.generate_private_key(65537, 4096, default_backend())
pkb = pk.private_bytes(
serialization.Encoding.DER,
serialization.PrivateFormat.PKCS8,
serialization.NoEncryption()
)
k = pk.public_key()
kb = k.public_bytes(
serialization.Encoding.DER,
serialization.PublicFormat.SubjectPublicKeyInfo
)

with open("private.key", "wb") as pkf, open("public.key", "wb") as f:
pkf.write(pkb)
f.write(kb)

def enc(text):
return base64.b64encode(k.encrypt(
text.encode(),
padding.OAEP(
mgf=padding.MGF1(hashes.SHA512()),
algorithm=hashes.SHA512(),
label=None
)
)).decode()

def dec(ciphertext):
return pk.decrypt(
base64.b64decode(ciphertext),
padding.OAEP(
mgf=padding.MGF1(hashes.SHA512()),
algorithm=hashes.SHA512(),
label=None
)
).decode()

while (inp:= input("RSA: ")) != "":
if re.match(f"^enc", inp):
print("Encrypt", enc(inp[3:].strip()))
if re.match(f"dec", inp):
print("Decrypt", dec(inp[3:].strip()))
< /code>
Und hier ist meine Kotlin-Datei.import java.security.KeyPair
import java.security.KeyPairGenerator
import java.security.SecureRandom
import java.security.KeyFactory
import java.security.PublicKey
import java.security.spec.X509EncodedKeySpec
import java.security.spec.PKCS8EncodedKeySpec
import javax.crypto.Cipher
import javax.crypto.SecretKey
import javax.crypto.KeyGenerator
import javax.crypto.spec.SecretKeySpec
import javax.crypto.spec.GCMParameterSpec
import java.util.Base64
import java.io.File
import java.nio.file.Files

fun main(){
print("Text: ")
val encrypted = rsaEncrypt(File("public.key"), readLine().toString())
println(encrypted)
print("Ciphertext: ")
println("Decrypted: ${rsaDecrypt(File("private.key"), readLine().toString())}")
}

fun bEncode(data: ByteArray) = Base64.getEncoder().encodeToString(data)

fun bDecode(string: String) = Base64.getDecoder().decode(string)

fun rsaEncrypt(keyFile: File, text: String): String {
val k = KeyFactory.getInstance("RSA").generatePublic(X509EncodedKeySpec(keyFile.readBytes()))
val c = Cipher.getInstance("RSA/ECB/OAEPwithSHA-512andMGF1Padding")
c.init(Cipher.ENCRYPT_MODE, k)
return bEncode(c.doFinal(text.toByteArray()))
}

fun rsaDecrypt(keyFile: File, ciphertext: String): String {
val k = KeyFactory.getInstance("RSA").generatePrivate(PKCS8EncodedKeySpec(keyFile.readBytes()))
val c = Cipher.getInstance("RSA/ECB/OAEPwithSHA-512andMGF1Padding")
c.init(Cipher.DECRYPT_MODE, k)
return c.doFinal(bDecode(ciphertext)).decodeToString()
}
< /code>
Nach meiner Datei führe ich zuerst meine Python -Datei aus, dann meine Kotlin -Datei. java.base /com.sun.crypto.provider.rsacipher.dofinal (rsacipher.java:389)
at java.base /com.sun.crypto.provider.rsacipher.enginedofinal (rsacipher.java java.base/javax.crypto.Cipher.doFinal(Cipher.java:2205)
at TestKt.rsaDecrypt(test.kt:58)
at TestKt.main(test.kt:22)
at TestKt.main(test.kt)

Here ist der Fehler in Python beim Versuch, kotlin verschlüsselte Daten zu entschlüsseln. dec (inp [3:].  strip ())
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ fehlgeschlagen < /p>
< /blockquote>
Was ist mit meinem Code falsch? < /p>
Hier ist die Ausführung der Codes. (Ich habe Druck/Println vom Typ und Größe von verschlüsselten Daten von Python und Kotlin hinzugefügt.  Es sieht normal aus.) 
S C:\Users\USERNAME\Projects\MyServer> python test.py && kotlinc test.kt -include-runtime -d app.jar && kotlin app.jar
Loading existing keys
RSA: enc Hello

512
Encrypt 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
RSA: dec 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
Decrypt Hello
RSA:
Text: Hello
ByteArray
512
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
Ciphertext: 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
Decrypted: Hello
PS C:\Users\USERNAME\Projects\MyServer> kotlin app.jar
Text: Hi
ByteArray
512
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
Ciphertext: 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
Exception in thread "main"  javax.crypto.BadPaddingException: Padding error in decryption
at java.base/com.sun.crypto.provider.RSACipher.doFinal(RSACipher.java:389)
at java.base/com.sun.crypto.provider.RSACipher.engineDoFinal(RSACipher.java:425)
at java.base/javax.crypto.Cipher.doFinal(Cipher.java:2205)
at TestKt.rsaDecrypt(test.kt:59)
at TestKt.main(test.kt:22)
at TestKt.main(test.kt)
PS C:\Users\USERNAME\Projects\MyServer> python test.py
Loading existing keys
RSA: dec 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
Traceback (most recent call last):
File "C:\Users\USERNAME\Projects\MyServer\test.py", line 56, in 
print("Decrypt", dec(inp[3:].strip()))
^^^^^^^^^^^^^^^^^^^^
File "C:\Users\USERNAME\Projects\MyServer\test.py", line 43, in dec
return pk.decrypt(
^^^^^^^^^^^
ValueError: Decryption failed