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constants overflofws untyped int #150

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merged 2 commits into from
Feb 8, 2021
Merged

constants overflofws untyped int #150

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b9a9190
constants overflofws untyped int
tiero Feb 5, 2021
9fcd635
revert position of the method
tiero Feb 5, 2021
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10 changes: 5 additions & 5 deletions blech32/blech32.go
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Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,7 @@ import (
const charset = "qpzry9x8gf2tvdw0s3jn54khce6mua7l"

//new generators, 7 bytes compared to bech32
var gen = []int{0x7d52fba40bd886, 0x5e8dbf1a03950c, 0x1c3a3c74072a18, 0x385d72fa0e5139, 0x7093e5a608865b}
var gen = []int64{0x7d52fba40bd886, 0x5e8dbf1a03950c, 0x1c3a3c74072a18, 0x385d72fa0e5139, 0x7093e5a608865b}

// Decode decodes a blech32 encoded string, returning the human-readable
// part and the data part excluding the checksum.
Expand Down Expand Up @@ -209,11 +209,11 @@ func blech32Checksum(hrp string, data []byte) []byte {
}

// For more details on the polymod calculation, please refer to BIP 173.
func blech32Polymod(values []int) int {
chk := 1
func blech32Polymod(values []int) int64 {
chk := int64(1)
for _, v := range values {
b := chk >> 55 //25->55 compared to bech32
chk = (chk&0x7fffffffffffff)<<5 ^ v //0x1ffffff->0x7fffffffffffff compared to bech32
b := chk >> 55 //25->55 compared to bech32
chk = (chk&int64(0x7fffffffffffff))<<int64(5) ^ int64(v) //0x1ffffff->0x7fffffffffffff compared to bech32
for i := 0; i < 5; i++ {
if (b>>uint(i))&1 == 1 {
chk ^= gen[i]
Expand Down