| 69 | } |
| 70 | |
| 71 | pub fn sha256_32bytes() -> Script { |
| 72 | script! { |
| 73 | {push_reverse_bytes_to_alt(32)} |
| 74 | |
| 75 | // top of stack: [ [n bytes input] ] |
| 76 | {u8_push_xor_table()} |
| 77 | {sha256_k()} |
| 78 | // top of stack: [ [64 byte chunks]... ] |
| 79 | {padding_add_roll(32)} |
| 80 | {sha256_init()} |
| 81 | // top of stack: [ [64 byte chunks]..., state[0-7]] |
| 82 | {sha256_transform_32bytes(8 + 16 + 64 + 1, 8 + 16)} |
| 83 | |
| 84 | {sha256_final()} |
| 85 | for _ in 0..8 { |
| 86 | {u32_toaltstack()} |
| 87 | } |
| 88 | for _ in 0..64 { |
| 89 | {u32_drop()} |
| 90 | } |
| 91 | {u8_drop_xor_table()} |
| 92 | |
| 93 | for _ in 0..8 { |
| 94 | {u32_fromaltstack()} |
| 95 | } |
| 96 | } |
| 97 | } |
| 98 | |
| 99 | pub fn sha256_80bytes() -> Script { |
| 100 | script! { |