3a0dce1bcd
BIP173 specifically calls out that encoders must always output an all lowercase bech32 string and that the lowercase form is used when determining a character's value for calculating the checksum. Currently, the implementation does not respect either of those requirements. This modifies the Encode function to convert the provided HRP to lowercase to ensure the requirements are satisfied and adds tests accordingly.
60 lines
1.7 KiB
Go
60 lines
1.7 KiB
Go
// Copyright (c) 2017 The btcsuite developers
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// Copyright (c) 2019 The Decred developers
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// Use of this source code is governed by an ISC
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// license that can be found in the LICENSE file.
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package bech32_test
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import (
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"encoding/hex"
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"fmt"
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"github.com/decred/dcrd/bech32"
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)
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// This example demonstrates how to decode a bech32 encoded string.
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func ExampleDecode() {
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encoded := "dcr1pw508d6qejxtdg4y5r3zarvary0c5xw7kw508d6qejxtdg4y5r3zarvary0c5xw7kf0q4gj"
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hrp, decoded, err := bech32.Decode(encoded)
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if err != nil {
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fmt.Println("Error:", err)
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}
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// Convert the decoded data from 5 bits-per-element into 8-bits-per-element
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// payload.
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decoded8bits, err := bech32.ConvertBits(decoded, 5, 8, true)
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if err != nil {
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fmt.Println("Error ConvertBits:", err)
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}
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// Show the decoded data.
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fmt.Println("Decoded human-readable part:", hrp)
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fmt.Println("Decoded Data:", hex.EncodeToString(decoded))
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fmt.Println("Decoded 8bpe Data:", hex.EncodeToString(decoded8bits))
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// Output:
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// Decoded human-readable part: dcr
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// Decoded Data: 010e140f070d1a001912060b0d081504140311021d030c1d03040f1814060e1e160e140f070d1a001912060b0d081504140311021d030c1d03040f1814060e1e16
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// Decoded 8bpe Data: 0ba8f3b740cc8cb6a2a4a0e22e8d9d191f8a19deb3a8f3b740cc8cb6a2a4a0e22e8d9d191f8a19deb0
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}
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// This example demonstrates how to encode data into a bech32 string.
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func ExampleEncode() {
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data := []byte("Test data")
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// Convert test data to base32:
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conv, err := bech32.ConvertBits(data, 8, 5, true)
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if err != nil {
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fmt.Println("Error:", err)
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}
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encoded, err := bech32.Encode("customHrp!11111q", conv)
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if err != nil {
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fmt.Println("Error:", err)
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}
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// Show the encoded data.
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fmt.Println("Encoded Data:", encoded)
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// Output:
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// Encoded Data: customhrp!11111q123jhxapqv3shgcgkxpuhe
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}
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