[Cryptech Tech] CrypTech parallel-signatures.py

[Dominique Douglas]

Hello,

I've been running performance test using a single alpha. To do this, I've been using the parallel-signatures.py script that's in libhal. It works well with one or two clients for 1024 and 2048 bit RSA keys. However, it crashes whenever I try to use 3+ clients. This includes the default 4 clients. Libhal is returning HAL_ERROR_ASN1_PARSE_FAILED. The failure is being returned from RPC_FUNC_PKEY_SIGN.

Has anyone else noticed this? I don't know my firmware version, but I believe it was from the September 2018 release. Here are the FPGA cores being used if this helps.

cryptech> fpga show cores
0000: ALPHA    0.10
0100: fmc      0.10
0200: sha1     0.60
0300: sha2-256 1.80
0400: sha2-512 0.80
0500: aes      0.60
0600: trng     0.51
0700: extnoise 0.10
0800: rosc ent 0.10
0900: rngmixer 0.50
0a00: csprng   0.50
1600: modexpa7 0.25
1e00: modexpa7 0.25
2600: mkmif    0.10
2700: ecdsa256 0.11
2800: ecdsa384 0.11

Thanks


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