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Signature

A Signature is an invisible signature embedded within the image using steganographic techniques. It is the core component of SASHA's image protection technology.

SignatureID​

SignatureID is a globally unique identifier encoded as UInt64, it is returned to the Partner to identify a specific protection. It does not identify an image nor its features.

You may use the Lookup endpoint in the Partner API to detect if an image is protected and get the SignatureID associated with the protection.

The lifecycle of a Signature​

Embed Signature​

Allows Partners to protect an image by embedding a Signature.

Protected image

Lookup Signature​

Allows Partners to check if an image is protected using SASHA Signature technology and detect the SignatureID associated with the image.

Protected image

Properties of a Signature​

  • Persistence: Signatures remain embedded even after image compression or format conversion
  • Invisibility: Signatures are imperceptible to human viewers
  • Cross-Platform: Signatures work across different devices and platforms

Privacy​

SASHA only stores the image during the embedding and lookup process and deletes it as soon as the process completes. The image is yours and stays yours. SASHA never uses your images for any other purpose.