From: Securing Embedded Smart Cameras with Trusted Computing
 | Atmel | Atmel | Broadcom | Infineon | Intel | STMicro- | TPM |
---|---|---|---|---|---|---|---|
 | (AT97SC3203) | (AT97SC3203S, | (BCM5755) | (SLB9635TT) | (ICH10) | electronics | Emulator |
 |  | I2C bus) |  |  |  | (ST19NP18) | (TrustCAM) |
TPM_OIAP | 44 ms | 47 ms | 19.0 ms | 28.6 ms | 23.4 ms | 15.1 ms | 2.9 ms |
RSA key size: 2048 bits | |||||||
TPM_Quote | 827.1 ms | 836.6 ms | 910.6 ms | 353.5 ms | 496.4 ms | 948.3 ms | 78.6 ms |
TPM_TickStampBlob | 799.7 ms | 809.3 ms | 912.4 ms | 340.9 ms | 491.2 ms | 914.8 ms | 79.4 ms |
TPM_Sign | 792.6 ms | 804.4 ms | 911.2 ms | 340.0 ms | 474.6 ms | 901.4 ms | 77.5 ms |
TPM_Seal | 126.0 ms | 135.2 ms | 21.9 ms | 181.9 ms | 145.2 ms | 318.1 ms | 8.2 ms |
TPM_Unseal | 855.1 ms | 864.4 ms | 909.3 ms | 344.1 ms | 559.2 ms | 1069.7 ms | 82.5 ms |
TPM_Unbind | 827.5 ms | 837.3 ms | 880.7 ms | 335.2 ms | 516.4 ms | 996.9 ms | 80.4 ms |
RSA key size: 1024 bits | |||||||
TPM_Quote | 207.3 ms | 216.7 ms | 391.5 ms | 105.1 ms | 152.9 ms | 253.1 ms | 15.8 ms |
TPM_TickStampBlob | 190.2 ms | 199.4 ms | 390.2 ms | 96.9 ms | 146.4 ms | 218.5 ms | 16.6 ms |
TPM_Sign | 185.5 ms | 194.8 ms | 390.3 ms | 95.5 ms | 132.8 ms | 206.6 ms | 14.7 ms |
TPM_Unbind | 208.1 ms | 217.6 ms | 390.4 ms | 88.5 ms | 135.8 ms | 257.6 ms | 17.1 ms |