kopia lustrzana https://github.com/solokeys/solo1
delete old code
Conor Patrick
rodzic
c61f15a090
commit
7a75fba6d3
149
fido2/ctaphid.c
149
fido2/ctaphid.c
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@ -16,6 +16,7 @@
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#include "util.h"
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#include "log.h"
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#include "extensions.h"
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#include "version.h"
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// move custom SHA512 command out,
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// and the following headers too
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@ -729,155 +730,7 @@ uint8_t ctaphid_handle_packet(uint8_t * pkt_raw)
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is_busy = 0;
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break;
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#endif
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#if defined(SOLO_HACKER) && (DEBUG_LEVEL > 0) && (!IS_BOOTLOADER == 1)
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case CTAPHID_PROBE:
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/*
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* Expects CBOR-serialized data of the form
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* {"subcommand": "hash_type", "data": b"the_data"}
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* with hash_type in SHA256, SHA512
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*/
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// some random logging
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printf1(TAG_HID,"CTAPHID_PROBE\n");
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// initialise CTAP response object
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ctap_response_init(&ctap_resp);
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// initialise write buffer
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ctaphid_write_buffer_init(&wb);
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wb.cid = cid;
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wb.cmd = CTAPHID_PROBE;
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// prepare parsing (or halt)
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int ret;
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CborParser parser;
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CborValue it, map;
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ret = cbor_parser_init(
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ctap_buffer, (size_t) buffer_len(),
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// strictly speaking, CTAP is not RFC canonical...
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CborValidateCanonicalFormat,
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&parser, &it);
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check_hardcore(ret);
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CborType type = cbor_value_get_type(&it);
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if (type != CborMapType) exit(1);
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ret = cbor_value_enter_container(&it,&map);
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check_hardcore(ret);
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size_t map_length = 0;
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ret = cbor_value_get_map_length(&it, &map_length);
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if (map_length != 2) exit(1);
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// parse subcommand (or halt)
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CborValue val;
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ret = cbor_value_map_find_value(&it, "subcommand", &val);
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check_hardcore(ret);
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if (!cbor_value_is_text_string(&val))
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exit(1);
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int sha_version = 0;
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bool found = false;
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if (!found) {
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ret = cbor_value_text_string_equals(
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&val, "SHA256", &found);
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check_hardcore(ret);
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if (found)
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sha_version = 256;
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}
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if (!found) {
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ret = cbor_value_text_string_equals(
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&val, "SHA512", &found);
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check_hardcore(ret);
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if (found)
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sha_version = 512;
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}
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if (sha_version == 0)
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exit(1);
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// parse data (or halt)
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ret = cbor_value_map_find_value(&it, "data", &val);
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check_hardcore(ret);
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if (!cbor_value_is_byte_string(&val))
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exit(1);
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size_t data_length = 0;
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ret = cbor_value_calculate_string_length(&val, &data_length);
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check_hardcore(ret);
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if (data_length > 6*1024)
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exit(1);
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unsigned char data[6*1024];
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ret = cbor_value_copy_byte_string (
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&val, &data[0], &data_length, &val);
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check_hardcore(ret);
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// execute subcommand
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if (sha_version == 256) {
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// calculate hash
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crypto_sha256_init();
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crypto_sha256_update(data, data_length);
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crypto_sha256_final(ctap_buffer);
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// write output
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wb.bcnt = CF_SHA256_HASHSZ; // 32 bytes
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ctaphid_write(&wb, &ctap_buffer, CF_SHA256_HASHSZ);
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}
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if (sha_version == 512) {
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// calculate hash
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crypto_sha512_init();
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crypto_sha512_update(data, data_length);
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crypto_sha512_final(ctap_buffer);
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// write output
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wb.bcnt = CF_SHA512_HASHSZ; // 64 bytes
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ctaphid_write(&wb, &ctap_buffer, CF_SHA512_HASHSZ);
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}
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// finalize
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ctaphid_write(&wb, NULL, 0);
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is_busy = 0;
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break;
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/*
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case CTAPHID_SHA256:
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// some random logging
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printf1(TAG_HID,"CTAPHID_SHA256\n");
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// initialise CTAP response object
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ctap_response_init(&ctap_resp);
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// initialise write buffer
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ctaphid_write_buffer_init(&wb);
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wb.cid = cid;
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wb.cmd = CTAPHID_SHA256;
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wb.bcnt = CF_SHA256_HASHSZ; // 32 bytes
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// calculate hash
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crypto_sha256_init();
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crypto_sha256_update(ctap_buffer, buffer_len());
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crypto_sha256_final(ctap_buffer);
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// copy to output
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ctaphid_write(&wb, &ctap_buffer, CF_SHA256_HASHSZ);
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ctaphid_write(&wb, NULL, 0);
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is_busy = 0;
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break;
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case CTAPHID_SHA512:
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// some random logging
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printf1(TAG_HID,"CTAPHID_SHA512\n");
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// initialise CTAP response object
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ctap_response_init(&ctap_resp);
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// initialise write buffer
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ctaphid_write_buffer_init(&wb);
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wb.cid = cid;
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wb.cmd = CTAPHID_SHA512;
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wb.bcnt = CF_SHA512_HASHSZ; // 64 bytes
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// calculate hash
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crypto_sha512_init();
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crypto_sha512_update(ctap_buffer, buffer_len());
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crypto_sha512_final(ctap_buffer);
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// copy to output
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ctaphid_write(&wb, &ctap_buffer, CF_SHA512_HASHSZ);
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ctaphid_write(&wb, NULL, 0);
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is_busy = 0;
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break;
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*/
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#endif
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default:
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printf2(TAG_ERR,"error, unimplemented HID cmd: %02x\r\n", buffer_cmd());
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ctaphid_send_error(cid, CTAP1_ERR_INVALID_COMMAND);
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