veil.cash

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When Bob clicks the deposit button he generates the following randomly:

Nullifier: 0x00b0c4b22c46ae173f8cb64f900df653a2d52240e6010a7c2611a5534bc0f03b

Secret: 
0x005be9d9417983287d2de75c7d49e2d979f6bcaf8d8fd52f36fd2e26fa794174

From these values a commitment is also generated:

Commitment: 0x00c73568a4c2c11b15bf9a38718115c5f7bb20853df89e012c5749f4a512a871

Think of the secret + nullifier as a private key and the commitment as the public key. The beauty of zk-SNARKs is Bob doesn’t need to present the private keys later onchain to show he owns this deposit.

"Think of the secret + nullifier as a private key and the commitment as the public key. The beauty of zk-SNARKs is Bob doesn’t need to present the private keys later onchain to show he owns this deposit."