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<h1class="fqn"><spanclass="in-band">Module <ahref="../index.html">halo2_proofs</a>::<wbr><aclass="mod"href="#">transcript</a><buttonid="copy-path"onclick="copy_path(this)"title="Copy item path to clipboard"><imgsrc="../../clipboard.svg"width="19"height="18"alt="Copy item path"></button></span></h1><spanclass="out-of-band"><aclass="srclink"href="../../src/halo2_proofs/transcript.rs.html#1-308">source</a> · <aid="toggle-all-docs"href="javascript:void(0)"title="collapse all docs">[<spanclass="inner">−</span>]</a></span></div><detailsclass="rustdoc-toggle top-doc"open><summaryclass="hideme"><span>Expand description</span></summary><divclass="docblock"><p>This module contains utilities and traits for dealing with Fiat-Shamir
<divclass="item-table"><divclass="item-row"><divclass="item-left module-item"><aclass="struct"href="struct.Blake2bRead.html"title="halo2_proofs::transcript::Blake2bRead struct">Blake2bRead</a></div><divclass="item-right docblock-short"><p>We will replace BLAKE2b with an algebraic hash function in a later version.</p>
</div></div><divclass="item-row"><divclass="item-left module-item"><aclass="struct"href="struct.Blake2bWrite.html"title="halo2_proofs::transcript::Blake2bWrite struct">Blake2bWrite</a></div><divclass="item-right docblock-short"><p>We will replace BLAKE2b with an algebraic hash function in a later version.</p>
</div></div><divclass="item-row"><divclass="item-left module-item"><aclass="struct"href="struct.ChallengeScalar.html"title="halo2_proofs::transcript::ChallengeScalar struct">ChallengeScalar</a></div><divclass="item-right docblock-short"><p>The scalar representation of a verifier challenge.</p>
<divclass="item-table"><divclass="item-row"><divclass="item-left module-item"><aclass="trait"href="trait.EncodedChallenge.html"title="halo2_proofs::transcript::EncodedChallenge trait">EncodedChallenge</a></div><divclass="item-right docblock-short"><p><code>EncodedChallenge<C></code> defines a challenge encoding with a <ahref="trait.EncodedChallenge.html#associatedtype.Input"title="Self::Input"><code>Self::Input</code></a>
</div></div><divclass="item-row"><divclass="item-left module-item"><aclass="trait"href="trait.Transcript.html"title="halo2_proofs::transcript::Transcript trait">Transcript</a></div><divclass="item-right docblock-short"><p>Generic transcript view (from either the prover or verifier’s perspective)</p>
</div></div><divclass="item-row"><divclass="item-left module-item"><aclass="trait"href="trait.TranscriptRead.html"title="halo2_proofs::transcript::TranscriptRead trait">TranscriptRead</a></div><divclass="item-right docblock-short"><p>Transcript view from the perspective of a verifier that has access to an
</div></div><divclass="item-row"><divclass="item-left module-item"><aclass="trait"href="trait.TranscriptWrite.html"title="halo2_proofs::transcript::TranscriptWrite trait">TranscriptWrite</a></div><divclass="item-right docblock-short"><p>Transcript view from the perspective of a prover that has access to an