Class NodeECIESProvider

Node.js-specific ECIES provider using native secp256k1

Remarks

This implementation:

Uses native secp256k1 for all EC operations (optimal performance)
Uses Node.js crypto for SHA-512, HMAC, and AES operations
Internally works with Uint8Array
Only uses Buffer at crypto API boundaries

Hierarchy

BaseECIESUint8
- NodeECIESProvider

Index

Methods

encrypt decrypt normalizeToUncompressed

Methods

encrypt

encrypt(publicKey: Uint8Array, message: Uint8Array): Promise<ECIESEncrypted>
Encrypts data using ECIES.
Parameters
- publicKey: Uint8Array
  The recipient's public key (compressed or uncompressed)
- message: Uint8Array
  The data to encrypt
Returns Promise<ECIESEncrypted>
Promise resolving to encrypted data structure
Inherited from BaseECIESUint8.encrypt
- Defined in packages/vana-sdk/src/crypto/ecies/base.ts:201

decrypt

decrypt(
privateKey: Uint8Array,
encrypted: ECIESEncrypted,
): Promise<Uint8Array<ArrayBufferLike>>
Decrypts ECIES encrypted data.
Parameters
- privateKey: Uint8Array
  The recipient's private key (32 bytes)
- encrypted: ECIESEncrypted
  The encrypted data structure from encrypt()
Returns Promise<Uint8Array<ArrayBufferLike>>
Promise resolving to the original plaintext
Inherited from BaseECIESUint8.decrypt
- Defined in packages/vana-sdk/src/crypto/ecies/base.ts:300

normalizeToUncompressed

normalizeToUncompressed(publicKey: Uint8Array): Uint8Array
Normalizes a public key to uncompressed format (65 bytes with 0x04 prefix). Handles compressed (33 bytes) and uncompressed (65 bytes) formats only.
Parameters
- publicKey: Uint8Array
  The public key to normalize (33 or 65 bytes)
Returns Uint8Array
The normalized uncompressed public key (65 bytes)

Remarks
Strict policy: Does not accept 64-byte raw coordinates to avoid masking malformed data. Callers must provide properly formatted keys.

Throws
When public key format is invalid or decompression fails
Overrides BaseECIESUint8.normalizeToUncompressed
- Defined in packages/vana-sdk/src/crypto/ecies/node.ts:190