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history replay enhancements

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This commit is contained in:
Shivaram Lingamneni 2018-12-28 13:45:55 -05:00
parent f3d138d909
commit 2c7c8fbaf9
18 changed files with 264 additions and 255 deletions
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11
irc/utils/crypto.go
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@ -6,7 +6,12 @@ package utils
import (
"crypto/rand"
"crypto/subtle"
"encoding/hex"
"encoding/base32"
)
var (
// standard b32 alphabet, but in lowercase for silly aesthetic reasons
b32encoder = base32.NewEncoding("abcdefghijklmnopqrstuvwxyz234567").WithPadding(base32.NoPadding)
)
// generate a secret token that cannot be brute-forced via online attacks
@ -14,8 +19,8 @@ func GenerateSecretToken() string {
// 128 bits of entropy are enough to resist any online attack:
var buf [16]byte
rand.Read(buf[:])
// 32 ASCII characters, should be fine for most purposes
return hex.EncodeToString(buf[:])
// 26 ASCII characters, should be fine for most purposes
return b32encoder.EncodeToString(buf[:])
}
// securely check if a supplied token matches a stored token