diff options
Diffstat (limited to 'ext/node/polyfills/_crypto/crypto_browserify/public_encrypt')
6 files changed, 0 insertions, 278 deletions
diff --git a/ext/node/polyfills/_crypto/crypto_browserify/public_encrypt/mgf.js b/ext/node/polyfills/_crypto/crypto_browserify/public_encrypt/mgf.js deleted file mode 100644 index 5bb41f896..000000000 --- a/ext/node/polyfills/_crypto/crypto_browserify/public_encrypt/mgf.js +++ /dev/null @@ -1,22 +0,0 @@ -// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license. -// Copyright 2017 Calvin Metcalf. All rights reserved. MIT license. - -import { createHash } from "internal:deno_node/polyfills/internal/crypto/hash.ts"; -import { Buffer } from "internal:deno_node/polyfills/buffer.ts"; - -export default function (seed, len) { - let t = Buffer.alloc(0); - let i = 0; - let c; - while (t.length < len) { - c = i2ops(i++); - t = Buffer.concat([t, createHash("sha1").update(seed).update(c).digest()]); - } - return t.slice(0, len); -} - -function i2ops(c) { - const out = Buffer.allocUnsafe(4); - out.writeUInt32BE(c, 0); - return out; -} diff --git a/ext/node/polyfills/_crypto/crypto_browserify/public_encrypt/mod.js b/ext/node/polyfills/_crypto/crypto_browserify/public_encrypt/mod.js deleted file mode 100644 index a91197aef..000000000 --- a/ext/node/polyfills/_crypto/crypto_browserify/public_encrypt/mod.js +++ /dev/null @@ -1,15 +0,0 @@ -// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license. -// Copyright 2017 Calvin Metcalf. All rights reserved. MIT license. - -import { publicEncrypt } from "internal:deno_node/polyfills/_crypto/crypto_browserify/public_encrypt/public_encrypt.js"; -import { privateDecrypt } from "internal:deno_node/polyfills/_crypto/crypto_browserify/public_encrypt/private_decrypt.js"; - -export { privateDecrypt, publicEncrypt }; - -export function privateEncrypt(key, buf) { - return publicEncrypt(key, buf, true); -} - -export function publicDecrypt(key, buf) { - return privateDecrypt(key, buf, true); -} diff --git a/ext/node/polyfills/_crypto/crypto_browserify/public_encrypt/private_decrypt.js b/ext/node/polyfills/_crypto/crypto_browserify/public_encrypt/private_decrypt.js deleted file mode 100644 index 9b485b3db..000000000 --- a/ext/node/polyfills/_crypto/crypto_browserify/public_encrypt/private_decrypt.js +++ /dev/null @@ -1,111 +0,0 @@ -// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license. -// Copyright 2017 Calvin Metcalf. All rights reserved. MIT license. - -import parseKeys from "internal:deno_node/polyfills/_crypto/crypto_browserify/parse_asn1/mod.js"; -import { createHash } from "internal:deno_node/polyfills/internal/crypto/hash.ts"; -import mgf from "internal:deno_node/polyfills/_crypto/crypto_browserify/public_encrypt/mgf.js"; -import { xor } from "internal:deno_node/polyfills/_crypto/crypto_browserify/public_encrypt/xor.js"; -import { BN } from "internal:deno_node/polyfills/_crypto/crypto_browserify/bn.js/bn.js"; -import { withPublic } from "internal:deno_node/polyfills/_crypto/crypto_browserify/public_encrypt/with_public.js"; -import crt from "internal:deno_node/polyfills/_crypto/crypto_browserify/browserify_rsa.js"; -import { Buffer } from "internal:deno_node/polyfills/buffer.ts"; - -export function privateDecrypt(privateKey, enc, reverse) { - let padding; - if (privateKey.padding) { - padding = privateKey.padding; - } else if (reverse) { - padding = 1; - } else { - padding = 4; - } - - const key = parseKeys(privateKey); - const k = key.modulus.byteLength(); - if (enc.length > k || new BN(enc).cmp(key.modulus) >= 0) { - throw new Error("decryption error"); - } - let msg; - if (reverse) { - msg = withPublic(new BN(enc), key); - } else { - msg = crt(enc, key); - } - const zBuffer = Buffer.alloc(k - msg.length); - msg = Buffer.concat([zBuffer, msg], k); - if (padding === 4) { - return oaep(key, msg); - } else if (padding === 1) { - return pkcs1(key, msg, reverse); - } else if (padding === 3) { - return msg; - } else { - throw new Error("unknown padding"); - } -} - -function oaep(key, msg) { - const k = key.modulus.byteLength(); - const iHash = createHash("sha1").update(Buffer.alloc(0)).digest(); - const hLen = iHash.length; - if (msg[0] !== 0) { - throw new Error("decryption error"); - } - const maskedSeed = msg.slice(1, hLen + 1); - const maskedDb = msg.slice(hLen + 1); - const seed = xor(maskedSeed, mgf(maskedDb, hLen)); - const db = xor(maskedDb, mgf(seed, k - hLen - 1)); - if (compare(iHash, db.slice(0, hLen))) { - throw new Error("decryption error"); - } - let i = hLen; - while (db[i] === 0) { - i++; - } - if (db[i++] !== 1) { - throw new Error("decryption error"); - } - return db.slice(i); -} - -function pkcs1(_key, msg, reverse) { - const p1 = msg.slice(0, 2); - let i = 2; - let status = 0; - while (msg[i++] !== 0) { - if (i >= msg.length) { - status++; - break; - } - } - const ps = msg.slice(2, i - 1); - - if ( - (p1.toString("hex") !== "0002" && !reverse) || - (p1.toString("hex") !== "0001" && reverse) - ) { - status++; - } - if (ps.length < 8) { - status++; - } - if (status) { - throw new Error("decryption error"); - } - return msg.slice(i); -} -function compare(a, b) { - a = Buffer.from(a); - b = Buffer.from(b); - let dif = 0; - let len = a.length; - if (a.length !== b.length) { - dif++; - len = Math.min(a.length, b.length); - } - let i = -1; - while (++i < len) { - dif += a[i] ^ b[i]; - } - return dif; -} diff --git a/ext/node/polyfills/_crypto/crypto_browserify/public_encrypt/public_encrypt.js b/ext/node/polyfills/_crypto/crypto_browserify/public_encrypt/public_encrypt.js deleted file mode 100644 index 9642128ba..000000000 --- a/ext/node/polyfills/_crypto/crypto_browserify/public_encrypt/public_encrypt.js +++ /dev/null @@ -1,104 +0,0 @@ -// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license. -// Copyright 2017 Calvin Metcalf. All rights reserved. MIT license. - -import parseKeys from "internal:deno_node/polyfills/_crypto/crypto_browserify/parse_asn1/mod.js"; -import { randomBytes } from "internal:deno_node/polyfills/_crypto/crypto_browserify/randombytes.ts"; -import { createHash } from "internal:deno_node/polyfills/internal/crypto/hash.ts"; -import mgf from "internal:deno_node/polyfills/_crypto/crypto_browserify/public_encrypt/mgf.js"; -import { xor } from "internal:deno_node/polyfills/_crypto/crypto_browserify/public_encrypt/xor.js"; -import { BN } from "internal:deno_node/polyfills/_crypto/crypto_browserify/bn.js/bn.js"; -import { withPublic } from "internal:deno_node/polyfills/_crypto/crypto_browserify/public_encrypt/with_public.js"; -import crt from "internal:deno_node/polyfills/_crypto/crypto_browserify/browserify_rsa.js"; -import { Buffer } from "internal:deno_node/polyfills/buffer.ts"; - -export function publicEncrypt(publicKey, msg, reverse) { - let padding; - if (publicKey.padding) { - padding = publicKey.padding; - } else if (reverse) { - padding = 1; - } else { - padding = 4; - } - const key = parseKeys(publicKey); - let paddedMsg; - if (padding === 4) { - paddedMsg = oaep(key, msg); - } else if (padding === 1) { - paddedMsg = pkcs1(key, msg, reverse); - } else if (padding === 3) { - paddedMsg = new BN(msg); - if (paddedMsg.cmp(key.modulus) >= 0) { - throw new Error("data too long for modulus"); - } - } else { - throw new Error("unknown padding"); - } - if (reverse) { - return crt(paddedMsg, key); - } else { - return withPublic(paddedMsg, key); - } -} - -function oaep(key, msg) { - const k = key.modulus.byteLength(); - const mLen = msg.length; - const iHash = createHash("sha1").update(Buffer.alloc(0)).digest(); - const hLen = iHash.length; - const hLen2 = 2 * hLen; - if (mLen > k - hLen2 - 2) { - throw new Error("message too long"); - } - const ps = Buffer.alloc(k - mLen - hLen2 - 2); - const dblen = k - hLen - 1; - const seed = randomBytes(hLen); - const maskedDb = xor( - Buffer.concat([iHash, ps, Buffer.alloc(1, 1), msg], dblen), - mgf(seed, dblen), - ); - const maskedSeed = xor(seed, mgf(maskedDb, hLen)); - return new BN(Buffer.concat([Buffer.alloc(1), maskedSeed, maskedDb], k)); -} -function pkcs1(key, msg, reverse) { - const mLen = msg.length; - const k = key.modulus.byteLength(); - if (mLen > k - 11) { - throw new Error("message too long"); - } - let ps; - if (reverse) { - ps = Buffer.alloc(k - mLen - 3, 0xff); - } else { - ps = nonZero(k - mLen - 3); - } - return new BN( - Buffer.concat([ - Buffer.from([ - 0, - reverse ? 1 : 2, - ]), - ps, - Buffer.alloc(1), - msg, - ], k), - ); -} -function nonZero(len) { - const out = Buffer.allocUnsafe(len); - let i = 0; - let cache = randomBytes(len * 2); - let cur = 0; - let num; - while (i < len) { - if (cur === cache.length) { - cache = randomBytes(len * 2); - cur = 0; - } - num = cache[cur++]; - if (num) { - out[i++] = num; - } - } - return out; -} diff --git a/ext/node/polyfills/_crypto/crypto_browserify/public_encrypt/with_public.js b/ext/node/polyfills/_crypto/crypto_browserify/public_encrypt/with_public.js deleted file mode 100644 index 5e94c7bc9..000000000 --- a/ext/node/polyfills/_crypto/crypto_browserify/public_encrypt/with_public.js +++ /dev/null @@ -1,15 +0,0 @@ -// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license. -// Copyright 2017 Calvin Metcalf. All rights reserved. MIT license. - -import { BN } from "internal:deno_node/polyfills/_crypto/crypto_browserify/bn.js/bn.js"; -import { Buffer } from "internal:deno_node/polyfills/buffer.ts"; - -export function withPublic(paddedMsg, key) { - return Buffer.from( - paddedMsg - .toRed(BN.mont(key.modulus)) - .redPow(new BN(key.publicExponent)) - .fromRed() - .toArray(), - ); -} diff --git a/ext/node/polyfills/_crypto/crypto_browserify/public_encrypt/xor.js b/ext/node/polyfills/_crypto/crypto_browserify/public_encrypt/xor.js deleted file mode 100644 index 25c4b8a40..000000000 --- a/ext/node/polyfills/_crypto/crypto_browserify/public_encrypt/xor.js +++ /dev/null @@ -1,11 +0,0 @@ -// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license. -// Copyright 2017 Calvin Metcalf. All rights reserved. MIT license. - -export function xor(a, b) { - const len = a.length; - let i = -1; - while (++i < len) { - a[i] ^= b[i]; - } - return a; -} |