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Added native aead chacha poly implementation

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This commit is contained in:
Ugljesa Jovanovic 2020-08-30 12:07:53 +02:00 committed by Ugljesa Jovanovic
parent 3de04749ba
commit 1a11bdc81b
No known key found for this signature in database
GPG Key ID: 178E6DFCECCB0E0F
2 changed files with 308 additions and 9 deletions
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2
multiplatform-crypto-libsodium-bindings/src/commonMain/kotlin/com.ionspin.kotlin.crypto/aead/AuthenticatedEncryptionWithAssociatedData.kt
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@ -25,6 +25,8 @@ val crypto_aead_chacha20poly1305_ABYTES = 16
data class AeadEncryptedDataAndTag(val data: UByteArray, val tag: UByteArray)
class AeadCorrupedOrTamperedDataException() : RuntimeException("MAC validation failed. Data is corrupted or tampered with.")
expect object AuthenticatedEncryptionWithAssociatedData {
// X - Ietf
fun xChaCha20Poly1305IetfEncrypt(

315
multiplatform-crypto-libsodium-bindings/src/nativeMain/kotlin/com/ionspin/kotlin/crypto/aead/AuthenticatedEncryptionWithAssociatedData.kt
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@ -3,9 +3,18 @@ package com.ionspin.kotlin.crypto.aead
import com.ionspin.kotlin.crypto.util.toPtr
import kotlinx.cinterop.convert
import kotlinx.cinterop.pin
import libsodium.crypto_aead_chacha20poly1305_decrypt
import libsodium.crypto_aead_chacha20poly1305_decrypt_detached
import libsodium.crypto_aead_chacha20poly1305_encrypt
import libsodium.crypto_aead_chacha20poly1305_encrypt_detached
import libsodium.crypto_aead_chacha20poly1305_ietf_decrypt
import libsodium.crypto_aead_chacha20poly1305_ietf_decrypt_detached
import libsodium.crypto_aead_chacha20poly1305_ietf_encrypt
import libsodium.crypto_aead_chacha20poly1305_ietf_encrypt_detached
import libsodium.crypto_aead_xchacha20poly1305_ietf_decrypt
import libsodium.crypto_aead_xchacha20poly1305_ietf_decrypt_detached
import libsodium.crypto_aead_xchacha20poly1305_ietf_encrypt
import libsodium.crypto_aead_xchacha20poly1305_ietf_encrypt_detached
actual object AuthenticatedEncryptionWithAssociatedData {
@ -55,7 +64,38 @@ actual object AuthenticatedEncryptionWithAssociatedData {
nonce: UByteArray,
key: UByteArray
): UByteArray {
TODO("not implemented yet")
val ciphertextPinned = ciphertext.pin()
val associatedDataPinned = associatedData.pin()
val noncePinned = nonce.pin()
val keyPinned = key.pin()
val message = UByteArray(ciphertext.size - crypto_aead_xchacha20poly1305_ietf_ABYTES)
val messagePinned = message.pin()
val validationResult = crypto_aead_xchacha20poly1305_ietf_decrypt(
messagePinned.toPtr(),
null,
null,
ciphertextPinned.toPtr(),
ciphertext.size.convert(),
associatedDataPinned.toPtr(),
associatedData.size.convert(),
noncePinned.toPtr(),
keyPinned.toPtr()
)
messagePinned.unpin()
ciphertextPinned.unpin()
associatedDataPinned.unpin()
noncePinned.unpin()
keyPinned.unpin()
if (validationResult != 0) {
throw AeadCorrupedOrTamperedDataException()
}
return message
}
actual fun xChaCha20Poly1305IetfEncryptDetached(
@ -64,7 +104,39 @@ actual object AuthenticatedEncryptionWithAssociatedData {
nonce: UByteArray,
key: UByteArray
): AeadEncryptedDataAndTag {
TODO("not implemented yet")
val messagePinned = message.pin()
val associatedDataPinned = associatedData.pin()
val noncePinned = nonce.pin()
val keyPinned = key.pin()
val ciphertext = UByteArray(message.size)
val ciphertextPinned = ciphertext.pin()
val authenticationTag = UByteArray(crypto_aead_xchacha20poly1305_ietf_ABYTES)
val authenticationTagPinned = authenticationTag.pin()
crypto_aead_xchacha20poly1305_ietf_encrypt_detached(
ciphertextPinned.toPtr(),
authenticationTagPinned.toPtr(),
null,
messagePinned.toPtr(),
message.size.convert(),
associatedDataPinned.toPtr(),
associatedData.size.convert(),
null, // nsec not used in this construct
noncePinned.toPtr(),
keyPinned.toPtr()
)
ciphertextPinned.unpin()
messagePinned.unpin()
associatedDataPinned.unpin()
noncePinned.unpin()
keyPinned.unpin()
return AeadEncryptedDataAndTag(ciphertext, authenticationTag)
}
actual fun xChaCha20Poly1305IetfDecryptDetached(
@ -74,7 +146,40 @@ actual object AuthenticatedEncryptionWithAssociatedData {
nonce: UByteArray,
key: UByteArray
): UByteArray {
TODO("not implemented yet")
val ciphertextPinned = ciphertext.pin()
val tagPinned = tag.pin()
val associatedDataPinned = associatedData.pin()
val noncePinned = nonce.pin()
val keyPinned = key.pin()
val message = UByteArray(ciphertext.size - crypto_aead_xchacha20poly1305_ietf_ABYTES)
val messagePinned = message.pin()
val validationResult = crypto_aead_xchacha20poly1305_ietf_decrypt_detached(
messagePinned.toPtr(),
null,
ciphertextPinned.toPtr(),
ciphertext.size.convert(),
tagPinned.toPtr(),
associatedDataPinned.toPtr(),
associatedData.size.convert(),
noncePinned.toPtr(),
keyPinned.toPtr()
)
messagePinned.unpin()
ciphertextPinned.unpin()
tagPinned.unpin()
associatedDataPinned.unpin()
noncePinned.unpin()
keyPinned.unpin()
if (validationResult != 0) {
throw AeadCorrupedOrTamperedDataException()
}
return message
}
actual fun chaCha20Poly1305IetfEncrypt(
@ -120,7 +225,38 @@ actual object AuthenticatedEncryptionWithAssociatedData {
nonce: UByteArray,
key: UByteArray
): UByteArray {
TODO("not implemented yet")
val ciphertextPinned = ciphertext.pin()
val associatedDataPinned = associatedData.pin()
val noncePinned = nonce.pin()
val keyPinned = key.pin()
val message = UByteArray(ciphertext.size - crypto_aead_chacha20poly1305_ietf_ABYTES)
val messagePinned = message.pin()
val validationResult = crypto_aead_chacha20poly1305_ietf_decrypt(
messagePinned.toPtr(),
null,
null,
ciphertextPinned.toPtr(),
ciphertext.size.convert(),
associatedDataPinned.toPtr(),
associatedData.size.convert(),
noncePinned.toPtr(),
keyPinned.toPtr()
)
messagePinned.unpin()
ciphertextPinned.unpin()
associatedDataPinned.unpin()
noncePinned.unpin()
keyPinned.unpin()
if (validationResult != 0) {
throw AeadCorrupedOrTamperedDataException()
}
return message
}
actual fun chaCha20Poly1305IetfEncryptDetached(
@ -129,7 +265,39 @@ actual object AuthenticatedEncryptionWithAssociatedData {
nonce: UByteArray,
key: UByteArray
): AeadEncryptedDataAndTag {
TODO("not implemented yet")
val messagePinned = message.pin()
val associatedDataPinned = associatedData.pin()
val noncePinned = nonce.pin()
val keyPinned = key.pin()
val ciphertext = UByteArray(message.size)
val ciphertextPinned = ciphertext.pin()
val authenticationTag = UByteArray(crypto_aead_chacha20poly1305_ietf_ABYTES)
val authenticationTagPinned = authenticationTag.pin()
crypto_aead_chacha20poly1305_ietf_encrypt_detached(
ciphertextPinned.toPtr(),
authenticationTagPinned.toPtr(),
null,
messagePinned.toPtr(),
message.size.convert(),
associatedDataPinned.toPtr(),
associatedData.size.convert(),
null, // nsec not used in this construct
noncePinned.toPtr(),
keyPinned.toPtr()
)
ciphertextPinned.unpin()
messagePinned.unpin()
associatedDataPinned.unpin()
noncePinned.unpin()
keyPinned.unpin()
return AeadEncryptedDataAndTag(ciphertext, authenticationTag)
}
actual fun chaCha20Poly1305IetfDecryptDetached(
@ -139,7 +307,40 @@ actual object AuthenticatedEncryptionWithAssociatedData {
nonce: UByteArray,
key: UByteArray
): UByteArray {
TODO("not implemented yet")
val ciphertextPinned = ciphertext.pin()
val tagPinned = tag.pin()
val associatedDataPinned = associatedData.pin()
val noncePinned = nonce.pin()
val keyPinned = key.pin()
val message = UByteArray(ciphertext.size - crypto_aead_chacha20poly1305_ietf_ABYTES)
val messagePinned = message.pin()
val validationResult = crypto_aead_chacha20poly1305_ietf_decrypt_detached(
messagePinned.toPtr(),
null,
ciphertextPinned.toPtr(),
ciphertext.size.convert(),
tagPinned.toPtr(),
associatedDataPinned.toPtr(),
associatedData.size.convert(),
noncePinned.toPtr(),
keyPinned.toPtr()
)
messagePinned.unpin()
ciphertextPinned.unpin()
tagPinned.unpin()
associatedDataPinned.unpin()
noncePinned.unpin()
keyPinned.unpin()
if (validationResult != 0) {
throw AeadCorrupedOrTamperedDataException()
}
return message
}
actual fun chaCha20Poly1305Encrypt(
@ -185,7 +386,38 @@ actual object AuthenticatedEncryptionWithAssociatedData {
nonce: UByteArray,
key: UByteArray
): UByteArray {
TODO("not implemented yet")
val ciphertextPinned = ciphertext.pin()
val associatedDataPinned = associatedData.pin()
val noncePinned = nonce.pin()
val keyPinned = key.pin()
val message = UByteArray(ciphertext.size - crypto_aead_chacha20poly1305_ABYTES)
val messagePinned = message.pin()
val validationResult = crypto_aead_chacha20poly1305_decrypt(
messagePinned.toPtr(),
null,
null,
ciphertextPinned.toPtr(),
ciphertext.size.convert(),
associatedDataPinned.toPtr(),
associatedData.size.convert(),
noncePinned.toPtr(),
keyPinned.toPtr()
)
messagePinned.unpin()
ciphertextPinned.unpin()
associatedDataPinned.unpin()
noncePinned.unpin()
keyPinned.unpin()
if (validationResult != 0) {
throw AeadCorrupedOrTamperedDataException()
}
return message
}
actual fun chaCha20Poly1305EncryptDetached(
@ -194,7 +426,39 @@ actual object AuthenticatedEncryptionWithAssociatedData {
nonce: UByteArray,
key: UByteArray
): AeadEncryptedDataAndTag {
TODO("not implemented yet")
val messagePinned = message.pin()
val associatedDataPinned = associatedData.pin()
val noncePinned = nonce.pin()
val keyPinned = key.pin()
val ciphertext = UByteArray(message.size)
val ciphertextPinned = ciphertext.pin()
val authenticationTag = UByteArray(crypto_aead_chacha20poly1305_ABYTES)
val authenticationTagPinned = authenticationTag.pin()
crypto_aead_chacha20poly1305_encrypt_detached(
ciphertextPinned.toPtr(),
authenticationTagPinned.toPtr(),
null,
messagePinned.toPtr(),
message.size.convert(),
associatedDataPinned.toPtr(),
associatedData.size.convert(),
null, // nsec not used in this construct
noncePinned.toPtr(),
keyPinned.toPtr()
)
ciphertextPinned.unpin()
messagePinned.unpin()
associatedDataPinned.unpin()
noncePinned.unpin()
keyPinned.unpin()
return AeadEncryptedDataAndTag(ciphertext, authenticationTag)
}
actual fun chaCha20Poly1305DecryptDetached(
@ -204,7 +468,40 @@ actual object AuthenticatedEncryptionWithAssociatedData {
nonce: UByteArray,
key: UByteArray
): UByteArray {
TODO("not implemented yet")
val ciphertextPinned = ciphertext.pin()
val tagPinned = tag.pin()
val associatedDataPinned = associatedData.pin()
val noncePinned = nonce.pin()
val keyPinned = key.pin()
val message = UByteArray(ciphertext.size - crypto_aead_chacha20poly1305_ABYTES)
val messagePinned = message.pin()
val validationResult = crypto_aead_chacha20poly1305_decrypt_detached(
messagePinned.toPtr(),
null,
ciphertextPinned.toPtr(),
ciphertext.size.convert(),
tagPinned.toPtr(),
associatedDataPinned.toPtr(),
associatedData.size.convert(),
noncePinned.toPtr(),
keyPinned.toPtr()
)
messagePinned.unpin()
ciphertextPinned.unpin()
tagPinned.unpin()
associatedDataPinned.unpin()
noncePinned.unpin()
keyPinned.unpin()
if (validationResult != 0) {
throw AeadCorrupedOrTamperedDataException()
}
return message
}
}