{"header":{"message":"base32: Add encoding of hashes, print base32-encoded hashes","description":null,"timestamp":"2022-09-16T20:40:34.707828151Z","authors":[{}]},"hash":"DKX3RO3LHLWUVHRUI23CN4A4IP3EPIUIVB6I5PPHMBU4PN2GOM2QC","authors":[{"login":"laumann","key":"AFgzZkD8ARgC21gkkCvxPV5HbL7YDVzgYEhbAxQG7UQY"}],"deps":{"hashes":[["DKX3RO3LHLWUVHRUI23CN4A4IP3EPIUIVB6I5PPHMBU4PN2GOM2QC","base32: Add encoding of hashes, print base32-encoded hashes"],["AA",null],["FD4A7HCMUX6MYQLXUBXZQ5MU4KTM2OI56FT4TJG4YZXWMC4KOEAQC","base32: describe known limitations"],["YG4DZB3AW3Z3LB5CFBZZ4ORJOLZFN3G4CA2YTAMSUOQX3USVNVEAC","add representation of hash, decode dependencies"],["VKLGQREYOZDV46F672RFE5XJO3OEOP4EHTCWZYOJY24HVPQX3L6QC","change: add base32 decode, initial deconstruction of hashed"]],"deps":["FD4A7HCMUX6MYQLXUBXZQ5MU4KTM2OI56FT4TJG4YZXWMC4KOEAQC","YG4DZB3AW3Z3LB5CFBZZ4ORJOLZFN3G4CA2YTAMSUOQX3USVNVEAC"],"known":[]},"hunks":[{"Edit":{"inode":{"change":3,"pos":360},"path":"hash.c","line":4,"atom":{"NewVertex":{"up_context":[{"change":3,"pos":420}],"down_context":[{"change":3,"pos":420}],"flag":"BLOCK","start":0,"end":20,"inode":{"change":3,"pos":360}}},"contents":[{"Add":"#include "}]}},{"Edit":{"inode":{"change":3,"pos":360},"path":"hash.c","line":7,"atom":{"NewVertex":{"up_context":[{"change":3,"pos":439}],"down_context":[{"change":3,"pos":439}],"flag":"BLOCK","start":21,"end":41,"inode":{"change":3,"pos":360}}},"contents":[{"Add":"#include \"base32.h\""}]}},{"Edit":{"inode":{"change":3,"pos":360},"path":"hash.c","line":13,"atom":{"NewVertex":{"up_context":[{"change":3,"pos":485}],"down_context":[{"change":3,"pos":485}],"flag":"BLOCK","start":42,"end":87,"inode":{"change":3,"pos":360}}},"contents":[{"Add":"\tchar b32hash[53];"},{"Add":""},{"Add":"\tmemset(b32hash, 0, 53);"}]}},{"Replacement":{"inode":{"change":3,"pos":360},"path":"hash.c","line":21,"ins":{"up_context":[{"change":3,"pos":578}],"down_context":[{"change":3,"pos":666}],"flag":"BLOCK","start":88,"end":265,"inode":{"change":3,"pos":360}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":3,"pos":578},"to":{"change":3,"start":578,"end":666},"introduced_by":3}],"inode":{"change":3,"pos":360}},"ins_contents":[{"Add":"\t\tbase32_encode_hash(b32hash, hash->bytes);"},{"Add":"\t\tprintf(\"%s\\n\", b32hash);"},{"Add":"\t\t/* for (i = 0; i < BLAKE3_BYTES; i++) */"},{"Add":"\t\t/* \tprintf(\"%02x\", hash->bytes[i]); */"},{"Add":"\t\t/* printf(\"\\n\"); */"}],"del_contents":[{"Del":"\t\tfor (i = 0; i < BLAKE3_BYTES; i++)\n\t\t\tprintf(\"%02x\", hash->bytes[i]);\n\t\tprintf(\"\\n\");\n"}]}},{"Edit":{"inode":{"change":5,"pos":1604},"path":"base32.h","line":11,"atom":{"NewVertex":{"up_context":[{"change":5,"pos":1886}],"down_context":[{"change":5,"pos":1886}],"flag":"BLOCK","start":266,"end":322,"inode":{"change":5,"pos":1604}}},"contents":[{"Add":""},{"Add":"void base32_encode_hash(char *dst, uint8_t const *in);"}]}},{"Edit":{"inode":{"change":5,"pos":1928},"path":"base32.c","line":2,"atom":{"NewVertex":{"up_context":[{"change":5,"pos":1949}],"down_context":[{"change":5,"pos":1949}],"flag":"BLOCK","start":323,"end":424,"inode":{"change":5,"pos":1928}}},"contents":[{"Add":""},{"Add":"/**"},{"Add":" * Base32 encoding/decoding - for now only supports presenting blake3 hashes (32"},{"Add":" * bytes)."},{"Add":" */"}]}},{"Edit":{"inode":{"change":5,"pos":1928},"path":"base32.c","line":42,"atom":{"NewVertex":{"up_context":[{"change":2,"pos":249}],"down_context":[{"change":2,"pos":249}],"flag":"BLOCK","start":425,"end":492,"inode":{"change":5,"pos":1928}}},"contents":[{"Add":" * (4) does not validate the 33rd byte to be a \"1\" meaning blake3."}]}},{"Edit":{"inode":{"change":5,"pos":1928},"path":"base32.c","line":71,"atom":{"NewVertex":{"up_context":[{"change":5,"pos":3724}],"down_context":[],"flag":"BLOCK","start":493,"end":1898,"inode":{"change":5,"pos":1928}}},"contents":[{"Add":""},{"Add":"static const char BASE32_ENC[] = \"ABCDEFGHIJKLMNOPQRSTUVWXYZ234567=\";"},{"Add":""},{"Add":"/**"},{"Add":" * Base32 encoding for hashes. This routine only handles (and assumes) inputs of"},{"Add":" * length 32. Additionally, it doesn't do any padding."},{"Add":" *"},{"Add":" * The output should large enough to hold 53 character. One interesting feature"},{"Add":" * of Pijul's use of base32 is that the hash type is appended to the output as"},{"Add":" * an extra byte where 1 = BLAKE3. This is the reason that all blake3-hashed"},{"Add":" * change files end with \"C\"."},{"Add":" */"},{"Add":"void"},{"Add":"base32_encode_hash(char *dst, uint8_t const *hash)"},{"Add":"{"},{"Add":"\tuint8_t b[5];"},{"Add":"\tint i, j;"},{"Add":""},{"Add":"\tfor (i = 0; i < 6; i++) {"},{"Add":"\t\tfor (j = 0; j < 5; j++)"},{"Add":"\t\t\tb[j] = hash[i * 5 + j];"},{"Add":"\t\t*dst++ = BASE32_ENC[b[0] >> 3];"},{"Add":"\t\t*dst++ = BASE32_ENC[(b[0] & 0x7) << 2 | (b[1] & 0xc0) >> 6];"},{"Add":"\t\t*dst++ = BASE32_ENC[(b[1] & 0x3e) >> 1];"},{"Add":"\t\t*dst++ = BASE32_ENC[(b[1] & 0x1) << 4 | (b[2] & 0xf0) >> 4];"},{"Add":"\t\t*dst++ = BASE32_ENC[(b[2] & 0x0f) << 1 | (b[3] & 0x80) >> 7];"},{"Add":"\t\t*dst++ = BASE32_ENC[(b[3] & 0x7c) >> 2];"},{"Add":"\t\t*dst++ = BASE32_ENC[(b[3] & 0x3) << 3 | (b[4] & 0xe0) >> 5];"},{"Add":"\t\t*dst++ = BASE32_ENC[b[4] & 0x1f];"},{"Add":"\t}"},{"Add":"\tb[0] = hash[30];"},{"Add":"\tb[1] = hash[31];"},{"Add":"\tb[2] = 1; /* Blake3 */"},{"Add":"\tb[3] = b[4] = 0;"},{"Add":""},{"Add":"\t*dst++ = BASE32_ENC[b[0] >> 3];"},{"Add":"\t*dst++ = BASE32_ENC[(b[0] & 0x7) << 2 | (b[1] & 0xc0) >> 6];"},{"Add":"\t*dst++ = BASE32_ENC[(b[1] & 0x3e) >> 1];"},{"Add":"\t*dst++ = BASE32_ENC[(b[1] & 0x1) << 4 | (b[2] & 0xf0) >> 4];"},{"Add":"\t*dst++ = BASE32_ENC[(b[2] & 0x0f) << 1 | (b[3] & 0x80) >> 7];"},{"Add":"}"}]}}],"owner":"laumann","repo":"ani","token":"h4pKWRs1wKr4yQzIfhxLn8HCnRtJR00IX4cEF5ss52Y=","login":null}

…

Dependencies

Change contents