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This commit is contained in:
Grayson Martin 2023-07-08 17:58:11 -05:00
commit 1e54cd661c
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GPG key ID: 4914C62F2696A273
5 changed files with 430 additions and 430 deletions
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16
common/mbedtls/ecc_point_compression.c
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@ -1,5 +1,5 @@
/*
* Not original to the mbedtls library. Taken from
* Not original to the mbedtls library. Taken from
* https://github.com/mwarning/mbedtls_ecp_compression
* to solve mbedtls' lack of support for elliptic point
* compression and decompression
@ -35,13 +35,13 @@ int mbedtls_ecp_decompress(
*olen = 2 * plen + 1;
if (osize < *olen)
return(MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL);
return (MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL);
if (ilen != plen + 1)
return(MBEDTLS_ERR_ECP_BAD_INPUT_DATA);
return (MBEDTLS_ERR_ECP_BAD_INPUT_DATA);
if (input[0] != 0x02 && input[0] != 0x03)
return(MBEDTLS_ERR_ECP_BAD_INPUT_DATA);
return (MBEDTLS_ERR_ECP_BAD_INPUT_DATA);
// output will consist of 0x04|X|Y
memcpy(output, input, ilen);
@ -97,7 +97,7 @@ cleanup:
mbedtls_mpi_free(&x);
mbedtls_mpi_free(&n);
return(ret);
return (ret);
}
int mbedtls_ecp_compress(
@ -112,13 +112,13 @@ int mbedtls_ecp_compress(
*olen = plen + 1;
if (osize < *olen)
return(MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL);
return (MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL);
if (ilen != 2 * plen + 1)
return (MBEDTLS_ERR_ECP_BAD_INPUT_DATA);
if (input[0] != 0x04)
return(MBEDTLS_ERR_ECP_BAD_INPUT_DATA);
return (MBEDTLS_ERR_ECP_BAD_INPUT_DATA);
// output will consist of 0x0?|X
memcpy(output, input, *olen);
@ -126,5 +126,5 @@ int mbedtls_ecp_compress(
// Encode even/odd of Y into first byte (either 0x02 or 0x03)
output[0] = 0x02 + (input[2 * plen] & 1);
return(0);
return (0);
}