SPDX (#687)

.babelrc.js

@@ -1 +1,4 @@
+// Copyright 2017-2020 @polkadot/util authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
 module.exports = require('./babel.config.js');

.eslintrc.js

@@ -1,3 +1,6 @@
+// Copyright 2017-2020 @polkadot/util authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
 const base = require('@polkadot/dev/config/eslint');
 
 module.exports = {

babel.config.js

@@ -1,5 +1,4 @@
 // Copyright 2017-2020 @polkadot/util authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 module.exports = require('@polkadot/dev/config/babel');

copy-to-apps.sh

@@ -1,4 +1,6 @@
 #!/bin/bash
+# Copyright 2017-2020 @polkadot/util authors & contributors
+# SPDX-License-Identifier: Apache-2.0
 
 function copy_folder () {
   SRC="packages/$1/build"

jest.config.js

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 const config = require('@polkadot/dev/config/jest');
 

jest.resolver.js

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 const path = require('path');
 

packages/keyring/src/defaults.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/keyring authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 // default substrate dev phrase
 const DEV_PHRASE = 'bottom drive obey lake curtain smoke basket hold race lonely fit walk';

packages/keyring/src/index.spec.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/keyring authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { hexToU8a, stringToU8a } from '@polkadot/util';
 import { cryptoWaitReady, setSS58Format, encodeAddress } from '@polkadot/util-crypto';

packages/keyring/src/index.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/keyring authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { detectPackage } from '@polkadot/util';
 import { decodeAddress, encodeAddress, setSS58Format } from '@polkadot/util-crypto';

packages/keyring/src/keyring.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/keyring authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { KeypairType, Keypair } from '@polkadot/util-crypto/types';
 import { KeyringInstance, KeyringPair, KeyringPair$Json, KeyringPair$JsonEncodingTypes, KeyringPair$Meta, KeyringOptions } from './types';

packages/keyring/src/pair/decode.spec.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/keyring authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import testingPairs from '../testingPairs';
 

packages/keyring/src/pair/decode.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/keyring authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { KeyringPair$JsonEncodingTypes } from '../types';
 import { PairInfo } from './types';

packages/keyring/src/pair/defaults.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/keyring authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { KeyringPair$JsonEncodingTypes } from '../types';
 

packages/keyring/src/pair/encode.spec.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/keyring authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import testingPairs from '../testingPairs';
 import { PKCS8_DIVIDER, PKCS8_HEADER, NONCE_LENGTH, PUB_LENGTH, SCRYPT_LENGTH, SEC_LENGTH } from './defaults';

packages/keyring/src/pair/encode.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/keyring authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { PairInfo } from './types';
 

packages/keyring/src/pair/index.spec.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/keyring authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { cryptoWaitReady, encodeAddress as toSS58, setSS58Format } from '@polkadot/util-crypto';
 

packages/keyring/src/pair/index.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/keyring authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { Keypair, KeypairType } from '@polkadot/util-crypto/types';
 import { KeyringPair, KeyringPair$Json, KeyringPair$JsonEncodingTypes, KeyringPair$Meta, SignOptions } from '../types';

packages/keyring/src/pair/nobody.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/keyring authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { KeyringPair, KeyringPair$Json, KeyringPair$Meta } from '../types';
 

packages/keyring/src/pair/toJson.spec.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/keyring authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import testingPairs from '../testingPairs';
 

packages/keyring/src/pair/toJson.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/keyring authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { KeypairType } from '@polkadot/util-crypto/types';
 import { KeyringPair$Json, KeyringPair$JsonEncodingTypes, KeyringPair$Meta } from '../types';

packages/keyring/src/pair/types.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/keyring authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 export interface PairInfo {
   publicKey: Uint8Array;

packages/keyring/src/pairs.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/keyring authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { KeyringPairs, KeyringPair } from './types';
 

packages/keyring/src/suri.spec.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/keyring authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 // From https://github.com/paritytech/substrate/wiki/Secret-URI-Test-Vectors
 

packages/keyring/src/testing.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/keyring authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { KeyringInstance, KeyringOptions } from './types';
 

packages/keyring/src/testingPairs.spec.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/keyring authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { cryptoWaitReady } from '@polkadot/util-crypto';
 

packages/keyring/src/testingPairs.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/keyring authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { KeyringPair, KeyringOptions } from './types';
 

packages/keyring/src/types.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/keyring authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { Prefix } from '@polkadot/util-crypto/address/types';
 import { KeypairType } from '@polkadot/util-crypto/types';

packages/util-crypto/src/address/check.spec.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import checkAddress from './check';
 

packages/util-crypto/src/address/check.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { Prefix } from './types';
 

packages/util-crypto/src/address/checkChecksum.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import sshash from './sshash';
 

packages/util-crypto/src/address/decode.spec.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { stringToU8a, u8aToHex, hexToU8a } from '@polkadot/util';
 

packages/util-crypto/src/address/decode.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { Prefix } from './types';
 

packages/util-crypto/src/address/defaults.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { allowedSS58 } from './ss58';
 

packages/util-crypto/src/address/derive.spec.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { waitReady } from '@polkadot/wasm-crypto';
 

packages/util-crypto/src/address/derive.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { Prefix } from './types';
 

packages/util-crypto/src/address/encode.spec.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import testingPairs from '@polkadot/keyring/testingPairs';
 

packages/util-crypto/src/address/encode.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { Prefix } from './types';
 

packages/util-crypto/src/address/encodeDerived.spec.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import encodeDerivedAddress from './encodeDerived';
 

packages/util-crypto/src/address/encodeDerived.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { Prefix } from './types';
 

packages/util-crypto/src/address/encodeMulti.spec.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import encodeMultiAddress from './encodeMulti';
 

packages/util-crypto/src/address/encodeMulti.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { Prefix } from './types';
 

packages/util-crypto/src/address/eq.spec.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import testingPairs from '@polkadot/keyring/testingPairs';
 import { addressEq } from '.';

packages/util-crypto/src/address/eq.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { u8aEq } from '@polkadot/util';
 

packages/util-crypto/src/address/index.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import checkAddress from './check';
 import checkAddressChecksum from './checkChecksum';

packages/util-crypto/src/address/keyDerived.spec.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import createKeyDerived from './keyDerived';
 

packages/util-crypto/src/address/keyDerived.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import BN from 'bn.js';
 import { bnToU8a, stringToU8a, u8aConcat } from '@polkadot/util';

packages/util-crypto/src/address/keyMulti.spec.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { createKeyMulti } from '.';
 

packages/util-crypto/src/address/keyMulti.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import BN from 'bn.js';
 import { bnToU8a, compactToU8a, stringToU8a, u8aConcat, u8aSorted } from '@polkadot/util';

packages/util-crypto/src/address/setSS58Format.spec.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import encode from './encode';
 import setSS58Format from './setSS58Format';

packages/util-crypto/src/address/setSS58Format.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { Prefix } from './types';
 

packages/util-crypto/src/address/sort.spec.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { sortAddresses } from '.';
 

packages/util-crypto/src/address/sort.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { Prefix } from './types';
 

packages/util-crypto/src/address/ss58.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 export const allowedSS58 = [
   // Polkadot

packages/util-crypto/src/address/sshash.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { stringToU8a, u8aConcat } from '@polkadot/util';
 

packages/util-crypto/src/address/types.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 // FIXME we really want this to map with what is in the allowedSS58 array... i.e. the
 // values there. As of now, we just map to number.

packages/util-crypto/src/base32/bs32.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 // https://github.com/multiformats/js-multibase/blob/master/src/constants.js
 const BASE32_ALPHABET = 'abcdefghijklmnopqrstuvwxyz234567';

packages/util-crypto/src/base32/decode.spec.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { u8aToString } from '@polkadot/util';
 

packages/util-crypto/src/base32/decode.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 // adapted from https://github.com/multiformats/js-multibase/blob/424709195b46ffb1d6f2f69a7707598ebe751e5e/src/rfc4648.js
 

packages/util-crypto/src/base32/encode.spec.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { base58Decode } from '../base58';
 import { base32Encode } from './';

packages/util-crypto/src/base32/encode.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 // adapted from https://github.com/multiformats/js-multibase/blob/424709195b46ffb1d6f2f69a7707598ebe751e5e/src/rfc4648.js
 

packages/util-crypto/src/base32/index.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 /**
  * @summary Encode and decode base32 values

packages/util-crypto/src/base32/validate.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { validateChars } from '../base58/validate';
 import { BASE32_ALPHABET } from './bs32';

packages/util-crypto/src/base58/bs58.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import baseX from 'base-x';
 

packages/util-crypto/src/base58/decode.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { assert, bufferToU8a } from '@polkadot/util';
 

packages/util-crypto/src/base58/encode.spec.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { base32Decode } from '../base32';
 import { base58Encode } from './';

packages/util-crypto/src/base58/encode.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { u8aToBuffer, u8aToU8a } from '@polkadot/util';
 

packages/util-crypto/src/base58/index.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 /**
  * @summary Encode and decode base58 values

packages/util-crypto/src/base58/validate.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { BASE58_ALPHABET } from './bs58';
 

packages/util-crypto/src/base64/decode.spec.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { stringToU8a } from '@polkadot/util';
 

packages/util-crypto/src/base64/decode.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { bufferToU8a } from '@polkadot/util';
 

packages/util-crypto/src/base64/encode.spec.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { base64Encode } from '.';
 

packages/util-crypto/src/base64/encode.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { u8aToBuffer, u8aToU8a } from '@polkadot/util';
 

packages/util-crypto/src/base64/index.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 /**
  * @summary Encode and decode base64 values

packages/util-crypto/src/base64/validate.spec.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { base64Validate } from '.';
 

packages/util-crypto/src/base64/validate.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 /**
  * @name base64Validate

packages/util-crypto/src/blake2/asHex.spec.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { hexToU8a } from '@polkadot/util';
 import { waitReady } from '@polkadot/wasm-crypto';

packages/util-crypto/src/blake2/asHex.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { u8aToHex } from '@polkadot/util';
 

packages/util-crypto/src/blake2/asU8a.spec.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { hexToU8a } from '@polkadot/util';
 import { waitReady } from '@polkadot/wasm-crypto';

packages/util-crypto/src/blake2/asU8a.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import blakejs from 'blakejs';
 import { u8aToU8a } from '@polkadot/util';

packages/util-crypto/src/blake2/index.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 /**
  * @summary Create blake2b values with specified bitlengths

packages/util-crypto/src/ethereum/encode.spec.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { keccakAsU8a } from '../keccak';
 import { ethereumEncode } from './';

packages/util-crypto/src/ethereum/encode.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { assert, u8aToHex, u8aToU8a } from '@polkadot/util';
 

packages/util-crypto/src/ethereum/index.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 export { default as ethereumEncode } from './encode';
 export { default as isEthereumAddress } from './isAddress';

packages/util-crypto/src/ethereum/isAddress.spec.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { isEthereumAddress } from './';
 

packages/util-crypto/src/ethereum/isAddress.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { isHex } from '@polkadot/util';
 

packages/util-crypto/src/ethereum/isChecksum.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { u8aToHex } from '@polkadot/util';
 

packages/util-crypto/src/ethereum/isCheksum.spec.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { isEthereumChecksum } from './';
 

packages/util-crypto/src/index.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 // polyfills
 import './polyfill';

packages/util-crypto/src/init.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import wasmCrypto from '@polkadot/wasm-crypto';
 

packages/util-crypto/src/keccak/asHex.spec.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { waitReady } from '@polkadot/wasm-crypto';
 

packages/util-crypto/src/keccak/asHex.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { u8aToHex } from '@polkadot/util';
 

packages/util-crypto/src/keccak/asU8a.spec.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { hexToU8a, stringToU8a } from '@polkadot/util';
 import { waitReady } from '@polkadot/wasm-crypto';

packages/util-crypto/src/keccak/asU8a.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import jssha3 from 'js-sha3';
 import { u8aToU8a } from '@polkadot/util';

packages/util-crypto/src/keccak/index.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 /**
  * @summary Create Keccak256 values as hex & Uint8Array output

packages/util-crypto/src/key/DeriveJunction.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import type BN from 'bn.js';
 

packages/util-crypto/src/key/extractPath.spec.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import keyExtractPath, { ExtractResult } from './extractPath';
 

packages/util-crypto/src/key/extractPath.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import DeriveJunction from './DeriveJunction';
 import { assert } from '@polkadot/util';

packages/util-crypto/src/key/extractSuri.spec.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import keyExtractSuri, { ExtractResult } from './extractSuri';
 

packages/util-crypto/src/key/extractSuri.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { assert, isNull } from '@polkadot/util';
 

packages/util-crypto/src/key/fromPath.ts

@@ -1,6 +1,5 @@
 // Copyright 2017-2020 @polkadot/util-crypto authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
+// SPDX-License-Identifier: Apache-2.0
 
 import { KeypairType, Keypair } from '../types';