caver.wallet.keyring

caver.wallet.keyring is a package that provides functionality related to Keyring which includes address and private key(s).

Class

Keyring is a structure that contains the address of the account and the private key(s). This is a class in caver-js that allows users to sign on using their own Klaytn's account.

Keyring can be classified into three types depending on the type of key being stored: SingleKeyring to store one address and one private key, MultipleKeyring to store one address and multiple private keys, and RoleBasedKeyring to store one address and one or more private keys for each role.

• SingleKeyring: User signs with a private key

• MultipleKeyring: User signs with private keys

• RoleBasedKeyring: User signs with the private key(s) by role

SingleKeyring

const keyring = new caver.wallet.keyring.singleKeyring(address, key)

SingleKeyring is a class that stores the address of the account and a private key. To create a SingleKeyring instance with a private key string, please refer to caver.wallet.keyring.create.

SingleKeyring uses a private key with which no roles assigned.

properties

MultipleKeyring

const keyring = new caver.wallet.keyring.multipleKeyring(address, keys)

MultipleKeyring is a class that stores the address of the account and the multiple private keys. To create a MultipleKeyring instance with private key strings, please refer to caver.wallet.keyring.create.

MultipleKeyring uses private keys with which no roles assigned.

properties

RoleBasedKeyring

const keyring = new caver.wallet.keyring.roleBasedKeyring(address, keys)

RoleBasedKeyring is a class that stores the address of the account and the private keys to be used for each role in the form of an array.

RoleBasedKeyring defines keys which is implemented as a two-dimensional array (empty keys looks like [ [], [], [] ]) that can include multiple keys for each role. The first array element defines the private key(s) for roleTransactionKey, the second defines private key(s) for roleAccountUpdateKey, and the third defines the private key(s) for roleFeePayerKey.

properties

Below is a getter defined in keyring to intuitively use the key defined for each role. The key used for each role can be accessed more easily through the getter below.

PrivateKey

const privateKey = new caver.wallet.keyring.privateKey('0x{private key}')

PrivateKey is a class that contains a private key string. The private key to be used for each role in Keyring is defined as this PrivateKey instance.

properties

SignatureData

SignatureData is a class that contains signature data inside. The signature which is the result of sign or signMessage will be returned as a signatureData. You can see how signatureData contains signature(s) inside like below.

const signature = new caver.wallet.keyring.signatureData(['0x1b', '0x2dfc6...', '0x15038...'])

properties

caver.wallet.keyring.generate

caver.wallet.keyring.generate([entropy])

Generates a SingleKeyring instance with a randomly generated private key.

Parameters

Return Value

Example

> caver.wallet.keyring.generate()
SingleKeyring {
    _address: '0x8ecdfda0281f0d36518f89e0e2444c4f98b2e718',
    _key: PrivateKey { _privateKey: '0x{private key}' }
}

caver.wallet.keyring.generateSingleKey

caver.wallet.keyring.generateSingleKey([entropy])

Generates a private key string.

Parameters

Return Value

Example

> caver.wallet.keyring.generateSingleKey()
'0x{private key}'

caver.wallet.keyring.generateMultipleKeys

caver.wallet.keyring.generateMultipleKeys(num [, entropy])

Generates private key strings.

Parameters

Return Value

Example

> caver.wallet.keyring.generateMultipleKeys(3)
[
    '0x{private key1}',
    '0x{private key2}',
    '0x{private key3}'
]

caver.wallet.keyring.generateRoleBasedKeys

caver.wallet.keyring.generateRoleBasedKeys(numArray [, entropy])

Generates a 2D array of which each array element contains keys defined for each role.

Parameters

Return Value

Example

> caver.wallet.keyring.generateRoleBasedKeys([2, 1, 3])
[
    [
        '0x{private key1}',
        '0x{private key2}'
    ],
    [
        '0x{private key3}'
    ],
    [
        '0x{private key4}',
        '0x{private key5}',
        '0x{private key6}'
    ]
]

caver.wallet.keyring.create

caver.wallet.keyring.create(address, key)

Creates a Keyring instance with parameters.

If key is a private key string, a SingleKeyring instance that uses a single private key is created. If key is an array containing private key strings, a MultipleKeyring instance that use multiple private keys is created. If key is a 2D array of which each element contains the private key(s) to be used for each role, a RoleBasedKeyring instance is created.

Parameters

Return Value

Example

// Create singleKeyring which uses one private key
> caver.wallet.keyring.create('0x{address in hex}', '0x{private key}')
SingleKeyring {
    _address: '0x30fcfa9679c7141a234c1324c7e0a8b715bdfc90',
    _key: PrivateKey { _privateKey: '0x{private key}' }
}

// Create multipleKeyring which uses multiple private keys
> caver.wallet.keyring.create('0x{address in hex}', ['0x{private key1}', '0x{private key2}'])
MultipleKeyring {
    _address: '0x30fcfa9679c7141a234c1324c7e0a8b715bdfc90',
    _keys: [
        PrivateKey { _privateKey: '0x{private key1}' },
        PrivateKey { _privateKey: '0x{private key2}' }
    ]
}

// Create roleBasedKeyring which uses different private key(s) by roles
> const roleBasedKeys = [
    ['0x{private key1}', '0x{private key2}'],
    ['0x{private key3}', '0x{private key4}'],
    ['0x{private key5}', '0x{private key6}'],
]
> caver.wallet.keyring.create('0x{address in hex}', roleBasedKeys)
RoleBasedKeyring {
    _address: '0x30fcfa9679c7141a234c1324c7e0a8b715bdfc90',
    _keys: [
        [
            PrivateKey { _privateKey: '0x{private key1}' },
            PrivateKey { _privateKey: '0x{private key2}' }
        ],
        [
            PrivateKey { _privateKey: '0x{private key3}' },
            PrivateKey { _privateKey: '0x{private key4}' }
        ],
        [
            PrivateKey { _privateKey: '0x{private key5}' },
            PrivateKey { _privateKey: '0x{private key6}' }
        ]
    ]
}

caver.wallet.keyring.createFromPrivateKey

caver.wallet.keyring.createFromPrivateKey(key)

Creates a SingleKeyring instance from a private key string or a KlaytnWalletKey.

Parameters

Return Value

Example

// Create singleKeyring from private key string
> caver.wallet.keyring.createFromPrivateKey('0x{private key}')
SingleKeyring {
    _address: '0xaa7b43f2eab01cfd787b07ce2f2fb5d6d20a8aa0',
    _key: PrivateKey { _privateKey: '0x{private key}' }
}

// Create singleKeyring from KlaytnWalletKey
> caver.wallet.keyring.createFromPrivateKey('0x{private key}0x{type}0x{address in hex}')
SingleKeyring {
    _address: '0xaa7b43f2eab01cfd787b07ce2f2fb5d6d20a8aa0',
    _key: PrivateKey { _privateKey: '0x{private key}' }
}

caver.wallet.keyring.createFromKlaytnWalletKey

caver.wallet.keyring.createFromKlaytnWalletKey(klaytnWalletKey)

Creates a SingleKeyring instance from a KlaytnWalletKey string.

Parameters

Return Value

Example

> caver.wallet.keyring.createFromKlaytnWalletKey('0x{private key}0x{type}0x{address in hex}')
SingleKeyring {
    _address: '0xaa7b43f2eab01cfd787b07ce2f2fb5d6d20a8aa0',
    _key: PrivateKey { _privateKey: '0x{private key}' }
}

caver.wallet.keyring.createWithSingleKey

caver.wallet.keyring.createWithSingleKey(address, key)

Creates a SingleKeyring instance from an address and a private key string.

Parameters

Return Value

Example

> caver.wallet.keyring.createWithSingleKey('0x{address in hex}', '0x{private key}')
SingleKeyring {
    _address: '0xaa7b43f2eab01cfd787b07ce2f2fb5d6d20a8aa0',
    _key: PrivateKey { _privateKey: '0x{private key}' }
}

caver.wallet.keyring.createWithMultipleKey

caver.wallet.keyring.createWithMultipleKey(address, key)

Creates a MultipleKeyring instance from an address and private key strings.

Parameters

Return Value

Example

> caver.wallet.keyring.createWithMultipleKey('0x{address in hex}', ['0x{private key1}', '0x{private key2}' ])
MultipleKeyring {
    _address: '0x30fcfa9679c7141a234c1324c7e0a8b715bdfc90',
    _keys: [
        PrivateKey { _privateKey: '0x{private key1}' },
        PrivateKey { _privateKey: '0x{private key2}' }
    ]
}

caver.wallet.keyring.createWithRoleBasedKey

caver.wallet.keyring.createWithRoleBasedKey(address, roledBasedKeyArray)

Creates a RoleBasedKeyring instance from an address and a 2D array of which each array element contains keys defined for each role.

Parameters

Return Value

Example

> const roleBasedKeys = [
    ['0x{private key1}', '0x{private key2}'],
    ['0x{private key3}', '0x{private key4}'],
    ['0x{private key5}', '0x{private key6}'],
]
> caver.wallet.keyring.createWithRoleBasedKey('0x{address in hex}', roleBasedKeys)
RoleBasedKeyring {
    _address: '0x30fcfa9679c7141a234c1324c7e0a8b715bdfc90',
    _keys: [
        [
            PrivateKey { _privateKey: '0x{private key1}' },
            PrivateKey { _privateKey: '0x{private key2}' }
        ],
        [
            PrivateKey { _privateKey: '0x{private key3}' },
            PrivateKey { _privateKey: '0x{private key4}' }
        ],
        [
            PrivateKey { _privateKey: '0x{private key5}' },
            PrivateKey { _privateKey: '0x{private key6}' }
        ]
    ]
}

caver.wallet.keyring.decrypt

caver.wallet.keyring.decrypt(keystore, password)

Decrypts a keystore v3 or v4 JSON and returns the decrypted Keyring instance.

Parameters

Return Value

Example

// Decrypt keystroe v4 (encrypted single keyring)
> caver.wallet.keyring.decrypt({ 
    version: 4,
    id: '9c12de05-0153-41c7-a8b7-849472eb5de7',
    address: '0xc02cec4d0346bf4124deeb55c5216a4138a40a8c',
    keyring: [
        { 
            ciphertext: 'eacf496cea5e80eca291251b3743bf93cdbcf7072efc3a74efeaf518e2796b15',
            cipherparams: { iv: 'd688a4319342e872cefcf51aef3ec2da' },
            cipher: 'aes-128-ctr',
            kdf: 'scrypt',
            kdfparams: {
                dklen: 32,
                salt: 'c3cee502c7157e0faa42386c6d666116ffcdf093c345166c502e23bc34e6ba40',
                n: 4096,
                r: 8,
                p: 1
            },
            mac: '4b49574f3d3356fa0d04f73e07d5a2a6bbfdd185bedfa31f37f347bc98f2ef26'
        }
    ]
}, 'password')
SingleKeyring {
    _address: '0xc02cec4d0346bf4124deeb55c5216a4138a40a8c',
    _key: PrivateKey { _privateKey: '0x{private key}' }
}

// Decrypt keystroe v4 (encrypted multiple keyring)
> caver.wallet.keyring.decrypt({
    version: 4,
    id: '55da3f9c-6444-4fc1-abfa-f2eabfc57501',
    address: '0x86bce8c859f5f304aa30adb89f2f7b6ee5a0d6e2',
    keyring: [
        {
            ciphertext: '93dd2c777abd9b80a0be8e1eb9739cbf27c127621a5d3f81e7779e47d3bb22f6',
            cipherparams: { iv: '84f90907f3f54f53d19cbd6ae1496b86' },
            cipher: 'aes-128-ctr',
            kdf: 'scrypt',
            kdfparams: {
                dklen: 32,
                salt: '69bf176a136c67a39d131912fb1e0ada4be0ed9f882448e1557b5c4233006e10',
                n: 4096,
                r: 8,
                p: 1,
            },
            mac: '8f6d1d234f4a87162cf3de0c7fb1d4a8421cd8f5a97b86b1a8e576ffc1eb52d2',
        },
        {
            ciphertext: '53d50b4e86b550b26919d9b8cea762cd3c637dfe4f2a0f18995d3401ead839a6',
            cipherparams: { iv: 'd7a6f63558996a9f99e7daabd289aa2c' },
            cipher: 'aes-128-ctr',
            kdf: 'scrypt',
            kdfparams: {
                dklen: 32,
                salt: '966116898d90c3e53ea09e4850a71e16df9533c1f9e1b2e1a9edec781e1ad44f',
                n: 4096,
                r: 8,
                p: 1,
            },
            mac: 'bca7125e17565c672a110ace9a25755847d42b81aa7df4bb8f5ce01ef7213295',
        },
    ],
}, 'password')
MultipleKeyring {
    _address: '0x86bce8c859f5f304aa30adb89f2f7b6ee5a0d6e2',
    _keys: [
        PrivateKey { _privateKey: '0x{private key1}' },
        PrivateKey { _privateKey: '0x{private key2}' }
    ]
}

// Decrypt keystroe v4 (encrypted role-based keyring)
> caver.wallet.keyring.decrypt({
    version: 4,
    id: '55da3f9c-6444-4fc1-abfa-f2eabfc57501',
    address: '0x86bce8c859f5f304aa30adb89f2f7b6ee5a0d6e2',
    keyring: [
        [
            {
                ciphertext: '93dd2c777abd9b80a0be8e1eb9739cbf27c127621a5d3f81e7779e47d3bb22f6',
                cipherparams: { iv: '84f90907f3f54f53d19cbd6ae1496b86' },
                cipher: 'aes-128-ctr',
                kdf: 'scrypt',
                kdfparams: {
                    dklen: 32,
                    salt: '69bf176a136c67a39d131912fb1e0ada4be0ed9f882448e1557b5c4233006e10',
                    n: 4096,
                    r: 8,
                    p: 1,
                },
                mac: '8f6d1d234f4a87162cf3de0c7fb1d4a8421cd8f5a97b86b1a8e576ffc1eb52d2',
            },
            {
                ciphertext: '53d50b4e86b550b26919d9b8cea762cd3c637dfe4f2a0f18995d3401ead839a6',
                cipherparams: { iv: 'd7a6f63558996a9f99e7daabd289aa2c' },
                cipher: 'aes-128-ctr',
                kdf: 'scrypt',
                kdfparams: {
                    dklen: 32,
                    salt: '966116898d90c3e53ea09e4850a71e16df9533c1f9e1b2e1a9edec781e1ad44f',
                    n: 4096,
                    r: 8,
                    p: 1,
                },
                mac: 'bca7125e17565c672a110ace9a25755847d42b81aa7df4bb8f5ce01ef7213295',
            },
        ],
        [
            {
                ciphertext: 'f16def98a70bb2dae053f791882f3254c66d63416633b8d91c2848893e7876ce',
                cipherparams: { iv: 'f5006128a4c53bc02cada64d095c15cf' },
                cipher: 'aes-128-ctr',
                kdf: 'scrypt',
                kdfparams: {
                    dklen: 32,
                    salt: '0d8a2f71f79c4880e43ff0795f6841a24cb18838b3ca8ecaeb0cda72da9a72ce',
                    n: 4096,
                    r: 8,
                    p: 1,
                },
                mac: '38b79276c3805b9d2ff5fbabf1b9d4ead295151b95401c1e54aed782502fc90a',
            },
        ],
        [
            {
                ciphertext: '544dbcc327942a6a52ad6a7d537e4459506afc700a6da4e8edebd62fb3dd55ee',
                cipherparams: { iv: '05dd5d25ad6426e026818b6fa9b25818' },
                cipher: 'aes-128-ctr',
                kdf: 'scrypt',
                kdfparams: {
                    dklen: 32,
                    salt: '3a9003c1527f65c772c54c6056a38b0048c2e2d58dc0e584a1d867f2039a25aa',
                    n: 4096,
                    r: 8,
                    p: 1,
                },
                mac: '19a698b51409cc9ac22d63d329b1201af3c89a04a1faea3111eec4ca97f2e00f',
            },
            {
                ciphertext: 'dd6b920f02cbcf5998ed205f8867ddbd9b6b088add8dfe1774a9fda29ff3920b',
                cipherparams: { iv: 'ac04c0f4559dad80dc86c975d1ef7067' },
                cipher: 'aes-128-ctr',
                kdf: 'scrypt',
                kdfparams: {
                    dklen: 32,
                    salt: '22279c6dbcc706d7daa120022a236cfe149496dca8232b0f8159d1df999569d6',
                    n: 4096,
                    r: 8,
                    p: 1,
                },
                mac: '1c54f7378fa279a49a2f790a0adb683defad8535a21bdf2f3dadc48a7bddf517',
            },
        ],
    ],
}, 'password')
RoleBasedKeyring {
    _address: '0x86bce8c859f5f304aa30adb89f2f7b6ee5a0d6e2',
    _keys: [
        [
            PrivateKey { _privateKey: '0x{private key1}' },
            PrivateKey { _privateKey: '0x{private key2}' }
        ],
        [
            PrivateKey { _privateKey: '0x{private key3}' }
        ],
        [
            PrivateKey { _privateKey: '0x{private key4}' },
            PrivateKey { _privateKey: '0x{private key5}' }
        ]
    ]
}

// Decrypt keystroe v3 JSON
> caver.wallet.keyring.decrypt({ 
    version: 3,
    id: '43f99d36-3905-40e6-bff8-ff0dfc380037',
    address: '0xc02cec4d0346bf4124deeb55c5216a4138a40a8c',
    crypto: {
        ciphertext: 'f7296e68807837a5318502c097276a89d58d91b85e45e692aee284a27bcd0955',
        cipherparams: { iv: '03fd985d07777601078840c73cc6f7f3' },
        cipher: 'aes-128-ctr',
        kdf: 'scrypt',
        kdfparams: {
            dklen: 32,
            salt: '46f85271c43fa64ab3338c5235f1d5073bc9379d9b7ba6065c89afb816d83a8a',
            n: 4096,
            r: 8,
            p: 1
        },
     mac: '947f13cd1481fa5ba186e59418ef7600fa69e9830054d59e4d5dc67176e1f967'
    }
}, 'password')
SingleKeyring {
    _address: '0xc02cec4d0346bf4124deeb55c5216a4138a40a8c',
    _key: PrivateKey { _privateKey: '0x{private key}' }
}

keyring.getPublicKey

keyring.getPublicKey()

Returns the public key string(s). If keyring is an instance of SingleKeyring, getPublicKey returns a public key string. If keyring is an instance of MultipleKeyring, getPublicKey returns an array of public key strings. If keyring is an instance of RoleBasedKeyring, getPublicKey returns a two-dimensional array in which the public key(s) used for each role is defined as an array.

Parameters

Return Value

Example

// Get public key with singleKeyring
> keyring.getPublicKey()
'0x49b2a...'

// Get public key with multipleKeyring
> keyring.getPublicKey()
[ '0x65b51...', '0x8d85c...' ]

// Get public key with roleBasedKeyring
> keyring.getPublicKey()
[
    [ '0x2d939...', '0x6beb4...', '0xd8f2f...' ],
    [ '0xf09cd...', '0x96a63...', '0x02000...' ],
    [ '0xc2d33...', '0x3088f...', '0xab193...' ]
]

keyring.copy

keyring.copy()

Returns a copied keyring instance.

Return Value

Example

// When keyring is an instance of SingleKeyring
> keyring.copy()
SingleKeyring {
    _address: '0x30fcfa9679c7141a234c1324c7e0a8b715bdfc90',
    _key: PrivateKey { _privateKey: '0x{private key}' }
}

// When keyring is an instance of MultipleKeyring
> keyring.copy()
MultipleKeyring {
    _address: '0x30fcfa9679c7141a234c1324c7e0a8b715bdfc90',
    _keys: [
        PrivateKey { _privateKey: '0x{private key1}' },
        PrivateKey { _privateKey: '0x{private key2}' }
    ]
}

// When keyring is an instance of RoleBasedKeyring
> keyring.copy()
RoleBasedKeyring {
    _address: '0x30fcfa9679c7141a234c1324c7e0a8b715bdfc90',
    _keys: [
        [
            PrivateKey { _privateKey: '0x{private key1}' },
            PrivateKey { _privateKey: '0x{private key2}' }
        ],
        [
            PrivateKey { _privateKey: '0x{private key3}' },
            PrivateKey { _privateKey: '0x{private key4}' }
        ],
        [
            PrivateKey { _privateKey: '0x{private key5}' },
            PrivateKey { _privateKey: '0x{private key6}' }
        ]
    ]
}

keyring.sign

keyring.sign(transactionHash, chainId, role [, index])

Signs with transactionHash with the private key(s) and returns signature(s). If the user has not defined an index parameter, keyring.sign signs transaction using all the private keys used by the role. If index is defined, the keyring.sign signs transaction using only one private key at the index. The role used in caver-js can be checked through caver.wallet.keyring.role.

When signing transactions, it is recommended to use caver.wallet.sign or transaction.sign.

Parameters

Return Value

Example

// Using roleBasedKeyring which has two private key in roleTransactionKey
> keyring.sign('0xe9a11d9ef95fb437f75d07ce768d43e74f158dd54b106e7d3746ce29d545b550', '0x2810', caver.wallet.keyring.role.roleTransactionKey)
[
    SignatureData { _v: '0x5044', _r: '0x7a8b6...', _s: '0x17139...' },
    SignatureData { _v: '0x5043', _r: '0x7f978...', _s: '0x1a532...' }
]

// Using roleBasedKeyring which has two private key in roleTransactionKey with index
> keyring.sign('0xe9a11d9ef95fb437f75d07ce768d43e74f158dd54b106e7d3746ce29d545b550', '0x2810', caver.wallet.keyring.role.roleTransactionKey, 1)
[
    SignatureData { _v: '0x5043', _r: '0x7f978...', _s: '0x1a532...' }
]

// Using roleBasedKeyring which has two private key in roleAccountUpdateKey
> keyring.sign('0xe9a11d9ef95fb437f75d07ce768d43e74f158dd54b106e7d3746ce29d545b550', '0x2810', caver.wallet.keyring.role.roleAccountUpdateKey)
[
    SignatureData { _v: '0x5044', _r: '0xdbce8...', _s: '0x039a6...' },
    SignatureData { _v: '0x5044', _r: '0xf69b7...', _s: '0x71dc9...' }
]

// Using roleBasedKeyring which has two private key in roleAccountUpdateKey with index
> keyring.sign('0xe9a11d9ef95fb437f75d07ce768d43e74f158dd54b106e7d3746ce29d545b550', '0x2810', caver.wallet.keyring.role.roleAccountUpdateKey, 1)
[
    SignatureData { _v: '0x5044', _r: '0xf69b7...', _s: '0x71dc9...' }
]

// Using roleBasedKeyring which has two private key in roleFeePayerKey
> keyring.sign('0xe9a11d9ef95fb437f75d07ce768d43e74f158dd54b106e7d3746ce29d545b550', '0x2810', caver.wallet.keyring.role.roleFeePayerKey)
[
    SignatureData { _v: '0x5043', _r: '0xe48bf...', _s: '0x1cf36...' },
    SignatureData { _v: '0x5043', _r: '0x82976...', _s: '0x3c5e0...' }
]

// Using roleBasedKeyring which has two private key in roleFeePayerKey with index
> keyring.sign('0xe9a11d9ef95fb437f75d07ce768d43e74f158dd54b106e7d3746ce29d545b550', '0x2810', caver.wallet.keyring.role.roleFeePayerKey, 1)
[
    SignatureData { _v: '0x5043', _r: '0x82976...', _s: '0x3c5e0...' }
]

keyring.signMessage

keyring.signMessage(message, role [, index])

Signs message with Klaytn-specific prefix. This calculates a Klaytn-specific signature with:

sign(keccak256("\x19Klaytn Signed Message:\n" + len(message) + message)))

If the user has not defined the index parameter, keyring.signMessage signs message with all the private keys used by the role. If the index parameter is given, keyring.signMessage signs message using only one private key at the given index. The role used in caver-js can be found through caver.wallet.keyring.role.

Parameters

Return Value

The returned object contains the following:

Example

// Sign with roleTransactionKey
> keyring.signMessage('message to sign', caver.wallet.keyring.role.roleTransactionKey)
{
    messageHash: '0x9c4c1ae0aa1faf7e59eaf6fcf36a34542698197b379a9949b58c92925e74c069',
    signatures: [
        SignatureData { _v: '0x1b', _r: '0x2dfc6...', _s: '0x15038...' }
    ],
    message: 'message to sign'
}

// Sign with roleFeePayerKey and index
> keyring.signMessage('message to sign', caver.wallet.keyring.role.roleFeePayerKey, 1)
{
    messageHash: '0x9c4c1ae0aa1faf7e59eaf6fcf36a34542698197b379a9949b58c92925e74c069',
    signatures: [
        SignatureData { _v: '0x1b', _r: '0x2dfc6...', _s: '0x15038...' }
    ],
    message: 'message to sign'
}

keyring.getKeyByRole

keyring.getKeyByRole(role)

Returns the private key(s) used by the role entered as a parameter.

Parameters

Return Value

Example

// getKeyByRole with singleKeyring. 
// The singleKeyring will return the single same PrivateKey intance regardless of role.
> keyring.getKeyByRole(caver.wallet.keyring.role.roleTransactionKey)
PrivateKey { _privateKey: '0x{private key}' }

> keyring.getKeyByRole(caver.wallet.keyring.role.roleAccountUpdateKey)
PrivateKey { _privateKey: '0x{private key}' }

> keyring.getKeyByRole(caver.wallet.keyring.role.roleFeePayerKey)
PrivateKey { _privateKey: '0x{private key}' }

// getKeyByRole with multipleKeyring. 
// The multipleKeyring will also return the single same array of PrivateKey intances regardless of role
> keyring.getKeyByRole(caver.wallet.keyring.role.roleTransactionKey)
[
    PrivateKey { _privateKey: '0x{private key1}' },
    PrivateKey { _privateKey: '0x{private key2}' }
]

> keyring.getKeyByRole(caver.wallet.keyring.role.roleAccountUpdateKey)
[
    PrivateKey { _privateKey: '0x{private key1}' },
    PrivateKey { _privateKey: '0x{private key2}' }
]

> keyring.getKeyByRole(caver.wallet.keyring.role.roleFeePayerKey)
[
    PrivateKey { _privateKey: '0x{private key1}' },
    PrivateKey { _privateKey: '0x{private key2}' }
]

// getKeyByRole with roleBasedKeyring. 
// The roleBasedKeyring will return different array of PrivateKey intances depends on role
> keyring.getKeyByRole(caver.wallet.keyring.role.roleTransactionKey)
[
    PrivateKey { _privateKey: '0x{private key1}' }
]

> keyring.getKeyByRole(caver.wallet.keyring.role.roleAccountUpdateKey)
[
    PrivateKey { _privateKey: '0x{private key2}' },
    PrivateKey { _privateKey: '0x{private key3}' }
]

> keyring.getKeyByRole(caver.wallet.keyring.role.roleFeePayerKey)
[
    PrivateKey { _privateKey: '0x{private key4}' },
    PrivateKey { _privateKey: '0x{private key5}' },
    PrivateKey { _privateKey: '0x{private key6}' }
]

keyring.getKlaytnWalletKey

keyring.getKlaytnWalletKey()

Returns the KlaytnWalletKey string for the keyring. With MultipleKeyring or RoleBasedKeyring, KlaytnWalletKey cannot be used. In this case, use keyring.encrypt.

Return Value

Example

> keyring.getKlaytnWalletKey()
'0x{private key}0x{type}0x{address in hex}'

keyring.toAccount

keyring.toAccount([options])

Returns the Account instance for updating the AccountKey of the Klaytn accounts. The Account instance has an AccountKey instance that can contain public key(s) inside, which will be sent to Klaytn Network and used for validating transactions. For more details about Account, see Account Update.

Note that if you update the AccountKey of the Account stored in the Klaytn, the old private key(s) cannot be used anymore. See Getting started on how to use the returned Account instance to update information in your Klaytn account on Klaytn.

Depending on the type of the private key(s) in the keyring, the returned Account instances can be classified as follows.

• When the keyring contains a private key string: Return an Account instance that includes the address in the keyring and an instance of AccountKeyPublic

• When the keyring contains private key strings: Return an Account instance that includes the address in the keyring and an instance of AccountKeyWeigthedMultiSig

• When the keyring contains the different private key strings by role: Return an Account instance that includes the address in the keyring and an instance of AccountKeyRoleBased

Parameters

Return Value

Example

// Get account with singleKeyring
> keyring.toAccount()
Account {
    _address: '0x6a3edfad6d1126020d5369e9097db39281876c5d',
    _accountKey: AccountKeyPublic { _publicKey: '0xc396b...' }
}

// Get account with multipleKeyring
> keyring.toAccount()
Account {
    _address: '0x53027503242c2f99969eeb8cb3a31f48f3668712',
    _accountKey: AccountKeyWeightedMultiSig {
        _threshold: 1,
        _weightedPublicKeys: [
            WeightedPublicKey { _weight: 1, _publicKey: '0x969c8...' },
            WeightedPublicKey { _weight: 1, _publicKey: '0x5bc06...' },
            WeightedPublicKey { _weight: 1, _publicKey: '0x33d83...' }
        ]
    }
}

// Get account with multipleKeyring and options
> keyring.toAccount(new caver.account.weightedMultiSigOptions(3, [2, 2, 3]))
Account {
    _address: '0x53027503242c2f99969eeb8cb3a31f48f3668712',
    _accountKey: AccountKeyWeightedMultiSig {
        _threshold: 3,
        _weightedPublicKeys: [
            WeightedPublicKey { _weight: 2, _publicKey: '0x969c8...' },
            WeightedPublicKey { _weight: 2, _publicKey: '0x5bc06...' },
            WeightedPublicKey { _weight: 3, _publicKey: '0x33d83...' }
        ]
    }
}

// Get account with roleBasedKeyring
> keyring.toAccount()
Account {
    _address: '0xe7e9184c125020af5d34eab7848bab799a1dcba9',
    _accountKey: AccountKeyRoleBased {
        _accountKeys: [
            AccountKeyWeightedMultiSig {
                _threshold: 1,
                _weightedPublicKeys: [
                    WeightedPublicKey { _weight: 1, _publicKey: '0x65b51...' },
                    WeightedPublicKey { _weight: 1, _publicKey: '0x8d85c...' }
                ]
            },
            AccountKeyWeightedMultiSig {
                _threshold: 1,
                _weightedPublicKeys: [
                    WeightedPublicKey { _weight: 1, _publicKey: '0x66899...' },
                    WeightedPublicKey { _weight: 1, _publicKey: '0x7705d...' }
                ]
            },
            AccountKeyWeightedMultiSig {
                _threshold: 1,
                _weightedPublicKeys: [
                    WeightedPublicKey { _weight: 1, _publicKey: '0xaa934...' },
                    WeightedPublicKey { _weight: 1, _publicKey: '0xb763f...' }
                ]
            }
        ]
    }
}

// Get account with roleBasedKeyring and options
> const options = [
    new caver.account.weightedMultiSigOptions(3, [2, 3]),
    new caver.account.weightedMultiSigOptions(2, [1, 1]),
    new caver.account.weightedMultiSigOptions(5, [3, 5])
]
> keyring.toAccount(options)
Account {
    _address: '0xe7e9184c125020af5d34eab7848bab799a1dcba9',
    _accountKey: AccountKeyRoleBased {
        _accountKeys: [
            AccountKeyWeightedMultiSig {
                _threshold: 3,
                _weightedPublicKeys: [
                    WeightedPublicKey { _weight: 2, _publicKey: '0x65b51...' },
                    WeightedPublicKey { _weight: 3, _publicKey: '0x8d85c...' }
                ]
            },
            AccountKeyWeightedMultiSig {
                _threshold: 2,
                _weightedPublicKeys: [
                    WeightedPublicKey { _weight: 1, _publicKey: '0x66899...' },
                    WeightedPublicKey { _weight: 1, _publicKey: '0x7705d...' }
                ]
            },
            AccountKeyWeightedMultiSig {
                _threshold: 5,
                _weightedPublicKeys: [
                    WeightedPublicKey { _weight: 3, _publicKey: '0xaa934...' },
                    WeightedPublicKey { _weight: 5, _publicKey: '0xb763f...' }
                ]
            }
        ]
    }
}

keyring.encrypt

keyring