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SHA2-224 cryptographic hash algorithm.

SHA-224 is the same algorithm as SHA-256, but with different initialization vectors and digest length.

Hierarchy

  • SHA256
    • SHA224

Implements

  • SerializableHash

Index

Constructors

constructor

  • Returns SHA224

Properties

Protected _state

_state: Int32Array

blockSize

blockSize: number

Block size

digestLength

digestLength: number = DIGEST_LENGTH

Methods

Protected _initState

  • _initState(): void

clean

  • clean(): void
  • Cleans internal buffers and resets hash state.

    Returns void

cleanSavedState

  • Cleans state returned by saveState().

    Parameters

    Returns void

digest

  • digest(): Uint8Array
  • Returns the final hash digest.

    Returns Uint8Array

finish

  • finish(out: Uint8Array): this
  • Finalizes hash state and puts hash into out. If hash was already finalized, puts the same value.

    Parameters

    • out: Uint8Array

    Returns this

reset

  • reset(): this
  • Resets hash state making it possible to re-use this instance to hash other data.

    Returns this

restoreState

  • Function useful for HMAC/PBKDF2 optimization. Restores state saved by saveState() and sets bytesHashed to the given value.

    Parameters

    Returns this

saveState

  • Function useful for HMAC/PBKDF2 optimization. Returns hash state to be used with restoreState(). Only chain value is saved, not buffers or other state variables.

    Returns SavedState

update

  • update(data: Uint8Array, dataLength?: number): this
  • Updates hash state with the given data.

    Throws error when trying to update already finalized hash: instance must be reset to update it again.

    Parameters

    • data: Uint8Array
    • Optional dataLength: number

    Returns this

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