1bce981f43
- AES-256-GCM via SubtleCrypto (browsers + React Native with polyfill) - Wire-compatible EncryptedField with @bytelyst/field-encrypt (server) and BLFieldEncrypt (Swift/Kotlin native SDKs) - encryptField, decryptField, generateKey, keyFromHex, keyToHex - PBKDF2 key derivation (600k iterations per OWASP 2023) - isEncryptedField type guard, toHex/fromHex helpers - 22 Vitest tests, all passing - Add Web Crypto globals to root ESLint config
29 lines
897 B
TypeScript
29 lines
897 B
TypeScript
/**
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* @bytelyst/client-encrypt — Hex encoding utilities
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*
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* Converts between Uint8Array and hex strings.
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* Compatible with the hex encoding used by @bytelyst/field-encrypt (Node.js)
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* and BLFieldEncrypt (Swift/Kotlin).
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*/
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/** Encode a Uint8Array to a lowercase hex string. */
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export function toHex(bytes: Uint8Array): string {
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const parts: string[] = new Array(bytes.length);
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for (let i = 0; i < bytes.length; i++) {
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parts[i] = bytes[i].toString(16).padStart(2, '0');
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}
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return parts.join('');
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}
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/** Decode a hex string to a Uint8Array. */
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export function fromHex(hex: string): Uint8Array {
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if (hex.length % 2 !== 0) {
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throw new Error(`Hex string must have even length, got ${hex.length}`);
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}
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const bytes = new Uint8Array(hex.length / 2);
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for (let i = 0; i < bytes.length; i++) {
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bytes[i] = parseInt(hex.substring(i * 2, i * 2 + 2), 16);
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}
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return bytes;
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}
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