Crypto

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨July 2015⁩.

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The Crypto interface represents basic cryptography features available in the current context. It allows access to a cryptographically strong random number generator and to cryptographic primitives.

The Crypto is available in windows using the Window.crypto property and in workers using the WorkerGlobalScope.crypto property.

Instance properties

This interface implements properties defined on RandomSource.

Crypto.subtle Read only Secure context

Returns a SubtleCrypto object providing access to common cryptographic primitives, like hashing, signing, encryption, or decryption.

Instance methods

This interface implements methods defined on RandomSource.

Crypto.getRandomValues()

Fills the passed TypedArray with cryptographically sound random values.

Crypto.randomUUID() Secure context

Returns a randomly generated, 36 character long v4 UUID.

Specifications

Browser compatibility

See also

• Web security
• Secure contexts
• Features restricted to secure contexts
• Transport Layer Security
• Strict-Transport-Security