mirror of https://github.com/wolfSSL/wolfTPM.git
Add WOLFTPM2_NO_ASN and move doc to a header file
Tesfa Mael
parent
63385223ca
commit
bb5eeb8976
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@ -19,6 +19,7 @@
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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*/
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#ifndef WOLFTPM2_NO_ASN
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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@ -28,17 +29,7 @@
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#ifndef WOLFTPM2_NO_WRAPPER
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/*!
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\ingroup ASN
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\brief Decodes ASN.1 length with optional length checking
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\param input Buffer containing ASN.1 data
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\param inOutIdx Current position in buffer, updated to new position
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\param len Decoded length value
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\param maxIdx Maximum allowed index in buffer
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\param check Flag to enable length validation
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\return Length on success, TPM_RC_INSUFFICIENT on buffer error
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*/
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WOLFTPM_API int TPM2_ASN_GetLength_ex(const uint8_t* input, word32* inOutIdx, int* len,
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int TPM2_ASN_GetLength_ex(const uint8_t* input, word32* inOutIdx, int* len,
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word32 maxIdx, int check)
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{
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int length = 0;
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@ -76,16 +67,7 @@ WOLFTPM_API int TPM2_ASN_GetLength_ex(const uint8_t* input, word32* inOutIdx, in
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return length;
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}
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/*!
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\ingroup ASN
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\brief Decodes ASN.1 length with length checking enabled
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\param input Buffer containing ASN.1 data
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\param inOutIdx Current position in buffer, updated to new position
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\param len Decoded length value
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\param maxIdx Maximum allowed index in buffer
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\return Length on success, TPM_RC_INSUFFICIENT on buffer error
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*/
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WOLFTPM_API int TPM2_ASN_GetLength(const uint8_t* input, word32* inOutIdx, int* len,
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int TPM2_ASN_GetLength(const uint8_t* input, word32* inOutIdx, int* len,
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word32 maxIdx)
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{
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return TPM2_ASN_GetLength_ex(input, inOutIdx, len, maxIdx, 1);
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@ -123,17 +105,7 @@ static int TPM2_ASN_GetHeader(const uint8_t* input, byte tag, word32* inOutIdx,
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return length;
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}
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/*!
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\ingroup ASN
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\brief Decodes ASN.1 tag and validates length
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\param input Buffer containing ASN.1 data
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\param inputSz Size of input buffer
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\param inOutIdx Current position in buffer, updated to new position
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\param tag_len Decoded length value
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\param tag Expected ASN.1 tag value
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\return 0 on success, TPM_RC_INSUFFICIENT on buffer error, TPM_RC_VALUE on tag mismatch
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*/
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WOLFTPM_API int TPM2_ASN_DecodeTag(const uint8_t* input, int inputSz,
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int TPM2_ASN_DecodeTag(const uint8_t* input, int inputSz,
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int* inOutIdx, int* tag_len, uint8_t tag)
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{
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word32 idx = *inOutIdx;
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@ -145,14 +117,7 @@ WOLFTPM_API int TPM2_ASN_DecodeTag(const uint8_t* input, int inputSz,
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return rc;
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}
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/*!
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\ingroup ASN
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\brief Decodes RSA signature from ASN.1 format
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\param pInput Pointer to buffer containing ASN.1 encoded RSA signature
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\param inputSz Size of input buffer
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\return Size of decoded signature on success, TPM_RC_VALUE on invalid input, TPM_RC_INSUFFICIENT on buffer error
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*/
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WOLFTPM_API int TPM2_ASN_RsaDecodeSignature(uint8_t** pInput, int inputSz)
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int TPM2_ASN_RsaDecodeSignature(uint8_t** pInput, int inputSz)
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{
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int rc;
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uint8_t* input = *pInput;
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@ -176,14 +141,7 @@ WOLFTPM_API int TPM2_ASN_RsaDecodeSignature(uint8_t** pInput, int inputSz)
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return rc;
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}
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/*!
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\brief Decodes an X.509 certificate
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\param input Buffer containing ASN.1 encoded X.509 certificate
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\param inputSz Size of input buffer
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\param x509 Structure to store decoded certificate data
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\return 0 on success, TPM_RC_VALUE on invalid input, TPM_RC_INSUFFICIENT on buffer error
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*/
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WOLFTPM_API int TPM2_ASN_DecodeX509Cert(uint8_t* input, int inputSz,
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int TPM2_ASN_DecodeX509Cert(uint8_t* input, int inputSz,
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DecodedX509* x509)
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{
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int rc;
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@ -307,15 +265,7 @@ WOLFTPM_API int TPM2_ASN_DecodeX509Cert(uint8_t* input, int inputSz,
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return TPM_RC_SUCCESS;
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}
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/*!
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\ingroup ASN
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\brief Decodes RSA public key from ASN.1 format into TPM2B_PUBLIC structure
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\param input Buffer containing ASN.1 encoded RSA public key
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\param inputSz Size of input buffer
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\param pub TPM2B_PUBLIC structure to store decoded key
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\return 0 on success, TPM_RC_VALUE on invalid input, TPM_RC_INSUFFICIENT on buffer error
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*/
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WOLFTPM_API int TPM2_ASN_DecodeRsaPubKey(uint8_t* input, int inputSz,
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int TPM2_ASN_DecodeRsaPubKey(uint8_t* input, int inputSz,
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TPM2B_PUBLIC* pub)
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{
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int rc;
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@ -359,14 +309,7 @@ WOLFTPM_API int TPM2_ASN_DecodeRsaPubKey(uint8_t* input, int inputSz,
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return rc;
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}
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/*!
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\ingroup ASN
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\brief Removes PKCS#1 v1.5 padding from RSA signature
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\param pSig Pointer to buffer containing padded signature, updated to point to unpadded data
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\param sigSz Size of signature buffer, updated with unpadded size
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\return 0 on success, TPM_RC_VALUE on invalid padding
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*/
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WOLFTPM_API int TPM2_ASN_RsaUnpadPkcsv15(uint8_t** pSig, int* sigSz)
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int TPM2_ASN_RsaUnpadPkcsv15(uint8_t** pSig, int* sigSz)
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{
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int rc = -1;
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uint8_t* sig = *pSig;
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@ -388,3 +331,4 @@ WOLFTPM_API int TPM2_ASN_RsaUnpadPkcsv15(uint8_t** pSig, int* sigSz)
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}
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#endif /* !WOLFTPM2_NO_WRAPPER */
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#endif /* !WOLFTPM2_NO_ASN */
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@ -29,6 +29,7 @@
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#include <wolftpm/tpm2.h>
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#include <wolftpm/tpm2_types.h>
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#ifndef WOLFTPM2_NO_ASN
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#ifndef WOLFTPM2_NO_WRAPPER
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#ifdef __cplusplus
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@ -75,14 +76,72 @@ typedef struct DecodedX509 {
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} DecodedX509;
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/* ASN.1 Decoder Functions */
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/*!
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\ingroup ASN
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\brief Decodes ASN.1 length with length checking enabled
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\param input Buffer containing ASN.1 data
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\param inOutIdx Current position in buffer, updated to new position
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\param len Decoded length value
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\param maxIdx Maximum allowed index in buffer
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\return Length on success, TPM_RC_INSUFFICIENT on buffer error
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*/
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WOLFTPM_API int TPM2_ASN_GetLength(const uint8_t* input, word32* inOutIdx, int* len,
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word32 maxIdx);
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/*!
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\ingroup ASN
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\brief Decodes ASN.1 length with optional length checking
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\param input Buffer containing ASN.1 data
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\param inOutIdx Current position in buffer, updated to new position
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\param len Decoded length value
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\param maxIdx Maximum allowed index in buffer
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\param check Flag to enable length validation
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\return Length on success, TPM_RC_INSUFFICIENT on buffer error
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*/
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WOLFTPM_API int TPM2_ASN_GetLength_ex(const uint8_t* input, word32* inOutIdx, int* len,
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word32 maxIdx, int check);
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/*!
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\ingroup ASN
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\brief Decodes ASN.1 tag and validates length
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\param input Buffer containing ASN.1 data
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\param inputSz Size of input buffer
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\param inOutIdx Current position in buffer, updated to new position
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\param tag_len Decoded length value
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\param tag Expected ASN.1 tag value
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\return 0 on success, TPM_RC_INSUFFICIENT on buffer error, TPM_RC_VALUE on tag mismatch
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*/
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WOLFTPM_API int TPM2_ASN_DecodeTag(const uint8_t* input, int inputSz, int* inOutIdx, int* tag_len, uint8_t tag);
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/*!
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\ingroup ASN
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\brief Decodes RSA signature from ASN.1 format
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\param pInput Pointer to buffer containing ASN.1 encoded RSA signature
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\param inputSz Size of input buffer
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\return Size of decoded signature on success, TPM_RC_VALUE on invalid input, TPM_RC_INSUFFICIENT on buffer error
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*/
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WOLFTPM_API int TPM2_ASN_RsaDecodeSignature(uint8_t** pInput, int inputSz);
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/*!
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\brief Decodes an X.509 certificate
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\param input Buffer containing ASN.1 encoded X.509 certificate
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\param inputSz Size of input buffer
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\param x509 Structure to store decoded certificate data
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\return 0 on success, TPM_RC_VALUE on invalid input, TPM_RC_INSUFFICIENT on buffer error
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*/
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WOLFTPM_API int TPM2_ASN_DecodeX509Cert(uint8_t* input, int inputSz, DecodedX509* x509);
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/*!
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\ingroup ASN
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\brief Decodes RSA public key from ASN.1 format into TPM2B_PUBLIC structure
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\param input Buffer containing ASN.1 encoded RSA public key
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\param inputSz Size of input buffer
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\param pub TPM2B_PUBLIC structure to store decoded key
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\return 0 on success, TPM_RC_VALUE on invalid input, TPM_RC_INSUFFICIENT on buffer error
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*/
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WOLFTPM_API int TPM2_ASN_DecodeRsaPubKey(uint8_t* input, int inputSz, TPM2B_PUBLIC* pub);
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/*!
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\ingroup ASN
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\brief Removes PKCS#1 v1.5 padding from RSA signature
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\param pSig Pointer to buffer containing padded signature, updated to point to unpadded data
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\param sigSz Size of signature buffer, updated with unpadded size
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\return 0 on success, TPM_RC_VALUE on invalid padding
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*/
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WOLFTPM_API int TPM2_ASN_RsaUnpadPkcsv15(uint8_t** pSig, int* sigSz);
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#ifdef __cplusplus
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@ -90,5 +149,5 @@ WOLFTPM_API int TPM2_ASN_RsaUnpadPkcsv15(uint8_t** pSig, int* sigSz);
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#endif
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#endif /* !WOLFTPM2_NO_WRAPPER */
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#endif /* !WOLFTPM2_NO_ASN */
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#endif /* WOLFTPM_TPM2_ASN_H */
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