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crypto/ecies: fix build on 32bit

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This commit is contained in:
Felix Lange 2015-10-28 20:11:36 +01:00
parent d462a906ee
commit e66ead8d86
1 changed files with 1 additions and 1 deletions
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2
crypto/ecies/ecies.go
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@ -152,7 +152,7 @@ var (
func ConcatKDF(hash hash.Hash, z, s1 []byte, kdlen int) ([]byte, error) { func ConcatKDF(hash hash.Hash, z, s1 []byte, kdlen int) ([]byte, error) {
hashlen := hash.Size() hashlen := hash.Size()
reps := (kdlen + hashlen - 1) / hashlen reps := (kdlen + hashlen - 1) / hashlen
if reps > math.MaxUint32 { if uint64(reps) > math.MaxUint32 {
return nil, ErrKeyDataTooLong // prevent counter overflow return nil, ErrKeyDataTooLong // prevent counter overflow
} }
counter := []byte{0, 0, 0, 0} counter := []byte{0, 0, 0, 0}