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crypt: remove checkValidString

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Remove the usage of checkValidString in decryptSegment to allow all
paths which can be created by encryptSegment to be decryptable.
This commit is contained in:
Fabian Möller
2019-02-08 11:25:08 +01:00
committed by Nick Craig-Wood
parent 4b9fdb8475
commit 6c0a749a42
2 changed files with 0 additions and 84 deletions
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19
backend/crypt/cipher.go
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@ -208,21 +208,6 @@ func (c *cipher) putBlock(buf []byte) {
c.buffers.Put(buf)
}
// check to see if the byte string is valid with no control characters
// from 0x00 to 0x1F and is a valid UTF-8 string
func checkValidString(buf []byte) error {
for i := range buf {
c := buf[i]
if c >= 0x00 && c < 0x20 || c == 0x7F {
return ErrorBadDecryptControlChar
}
}
if !utf8.Valid(buf) {
return ErrorBadDecryptUTF8
}
return nil
}
// encodeFileName encodes a filename using a modified version of
// standard base32 as described in RFC4648
//
@ -294,10 +279,6 @@ func (c *cipher) decryptSegment(ciphertext string) (string, error) {
if err != nil {
return "", err
}
err = checkValidString(plaintext)
if err != nil {
return "", err
}
return string(plaintext), err
}