BIP-39 tools using Node and implemented in Coffeescript
Encodes the input into a mnemonic string.
encode (hex|base58|base64) [--words <number>] [--strict] [--language english] [--json] <input>
| Formats | Description |
|---|---|
| hex | Input is a hex value |
| base58 | Input is a Bitcoin address or private key encoded using base-58 |
| base64 | Input is a base-64 value |
| Options | Description |
|---|---|
--words number, -n number |
Number of words to be generated. The input is truncated or padded with 0's if it doesn't match the specified value. If --strict is specified and the input doesn't match, the encode will fail. |
| --strict, -s | The length of the input must match the number of words (if specified). |
| --language, -l | The wordlist to use. Currently, only english is supported and it is the default. |
| --json, -j | Outputs the words in json format |
- The size of a BIP-39 source must be a multiple of 32 bits. If the size of the input is not a multiple of 32 bits, then it is automatically padded with 0's.
- If the input is automatically padded (i.e, padded without the use of
--words), the length of the input (up to 255) is stored in the last byte of the padding. This is an incomplete solution to the problem of the varying size of a WIF-encoded private key. If you don't want this value in the padding, use--words.
Decodes a mnemonic string back to the source value.
decode (address|wif|base58|base64|hex) [--language english] <mnemonic phrase>
| Formats | Description |
|---|---|
| address | Decoded into a bitcoin address. |
| wif | Decoded into a WIF-formatted private key. |
| base58 | Output format is base-58. |
| base64 | Output format is base-64. |
| hex | Output format is hex. |
| Options | Description |
|---|---|
| --language, -l | The wordlist to be used to validate the mnemonic phrase (optional). |
Generates a seed from a mnemonic string.
seed [--passphrase <passphrase>] [--validate] [--language english] <mnemonic phrase>
| Options | Description |
|---|---|
| --passphrase, -p | Passphrase. (optional) |
| --validate, -v | If specified, the mnemonic phrase is validated (optional). |
| --language, -l | The wordlist to be used to validate the mnemonic phrase. Currently, only english is supported and it is the default. |