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91251b1870
We'll want this once we add blinded HTLCs. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
26 lines
630 B
C
26 lines
630 B
C
#ifndef LIGHTNING_COMMON_BLINDING_H
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#define LIGHTNING_COMMON_BLINDING_H
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#include "config.h"
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struct privkey;
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struct pubkey;
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struct secret;
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struct sha256;
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/* H(E(i) || ss(i)) */
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void blinding_hash_e_and_ss(const struct pubkey *e,
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const struct secret *ss,
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struct sha256 *sha);
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/* E(i+1) = H(E(i) || ss(i)) * E(i) */
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bool blinding_next_pubkey(const struct pubkey *pk,
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const struct sha256 *h,
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struct pubkey *next);
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/* e(i+1) = H(E(i) || ss(i)) * e(i) */
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bool blinding_next_privkey(const struct privkey *e,
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const struct sha256 *h,
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struct privkey *next);
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#endif /* LIGHTNING_COMMON_BLINDING_H */
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