Added PKCS7 ECC support to example

wolfSSL / wolfTPM

wolfTPM is a highly portable TPM 2.0 library, designed for embedded use.

https://www.wolfssl.com

GNU General Public License v2.0

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Closed dgarske closed 5 months ago

dgarske commented 5 months ago

Added PKCS7 ECC support to example.
Added wrapper function to export TPM public key as DER/ASN.1 or PEM.
Fix for crypto callback ECC sign to handle getting keySz for unknown cases (like PKCS7 without privateKey set).
Fixed keygen and csr to use ECC SRK.

Fixes ZD 16675

JacobBarthelmeh commented 5 months ago

Tested the PKCS7 example out on an Infineon TPM + PI2. Code looks good, thanks David.