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authorJakob Unterwurzacher2021-09-04 12:01:50 +0200
committerJakob Unterwurzacher2021-09-07 18:14:05 +0200
commitb8c56ccffc7d2512cb33434a4fb86467fea1e36f (patch)
treeed3dfac526ec508ed1c121d9971ba8b999c7b7ec /internal/stupidgcm/xchacha.go
parent8f820c429d88f601ba6c7a614fef23b7f53eb489 (diff)
stupidgcm: replace naked panics
Diffstat (limited to 'internal/stupidgcm/xchacha.go')
-rw-r--r--internal/stupidgcm/xchacha.go15
1 files changed, 8 insertions, 7 deletions
diff --git a/internal/stupidgcm/xchacha.go b/internal/stupidgcm/xchacha.go
index eec8852..3bf3b5b 100644
--- a/internal/stupidgcm/xchacha.go
+++ b/internal/stupidgcm/xchacha.go
@@ -13,6 +13,7 @@ package stupidgcm
import (
"crypto/cipher"
"errors"
+ "log"
"golang.org/x/crypto/chacha20"
"golang.org/x/crypto/chacha20poly1305"
@@ -33,7 +34,7 @@ type stupidXchacha20poly1305 struct {
// nonces are randomly generated.
func NewXchacha20poly1305(key []byte) cipher.AEAD {
if len(key) != chacha20poly1305.KeySize {
- panic("bad key length")
+ log.Panic("bad key length")
}
ret := new(stupidXchacha20poly1305)
copy(ret.key[:], key)
@@ -50,10 +51,10 @@ func (*stupidXchacha20poly1305) Overhead() int {
func (x *stupidXchacha20poly1305) Seal(dst, nonce, plaintext, additionalData []byte) []byte {
if x.wiped {
- panic("BUG: tried to use wiped key")
+ log.Panic("BUG: tried to use wiped key")
}
if len(nonce) != chacha20poly1305.NonceSizeX {
- panic("bad nonce length passed to Seal")
+ log.Panic("bad nonce length passed to Seal")
}
// XChaCha20-Poly1305 technically supports a 64-bit counter, so there is no
@@ -62,7 +63,7 @@ func (x *stupidXchacha20poly1305) Seal(dst, nonce, plaintext, additionalData []b
// an issue because the cipher.AEAD API requires the entire message to be in
// memory, and the counter overflows at 256 GB.
if uint64(len(plaintext)) > (1<<38)-64 {
- panic("plaintext too large")
+ log.Panic("plaintext too large")
}
hKey, _ := chacha20.HChaCha20(x.key[:], nonce[0:16])
@@ -78,16 +79,16 @@ func (x *stupidXchacha20poly1305) Seal(dst, nonce, plaintext, additionalData []b
func (x *stupidXchacha20poly1305) Open(dst, nonce, ciphertext, additionalData []byte) ([]byte, error) {
if x.wiped {
- panic("BUG: tried to use wiped key")
+ log.Panic("BUG: tried to use wiped key")
}
if len(nonce) != chacha20poly1305.NonceSizeX {
- panic("bad nonce length passed to Open")
+ log.Panic("bad nonce length passed to Open")
}
if len(ciphertext) < 16 {
return nil, errors.New("message too short")
}
if uint64(len(ciphertext)) > (1<<38)-48 {
- panic("ciphertext too large")
+ log.Panic("ciphertext too large")
}
hKey, _ := chacha20.HChaCha20(x.key[:], nonce[0:16])