技术特性

• TPM features
  • Single-chip Trusted Platform Module (TPM)
  • Compliant with Trusted Computing Group (TCG) Trusted Platform Module (TPM) Main specifications 1.2, Level 2, Revision 116
  • Based on TCG PC Client Specific TPM Interface Specifications 1.21
  • SPI support up to 10 MHz
  • Provisioned with Endorsement key and Endorsement Key certificate
  • Support of clock suspension for power saving mode
  • Support of Field Upgrade and Dictionary Attack protection
  • Monotonic counter endurance guaranteed for 7 years
  • Support of software and hardware physical presence
• Hardware features
  • ARM® SecurCore® SC300™ 32-bit RISC core
  • Highly reliable CMOS EEPROM submicron technology
    • 30-year data retention at 25° C
    • 500,000 Erase/Write cycles endurance typical at 25° C
  • Temperature range: 0°C to +70°C
  • ESD protection up to 4 kV (HBM)
  • 3.3 V supply voltage range
  • 28-lead thin shrink small outline and 32-lead very thin fine pitch quad flat pack ECOPACK® packages
• Security features
  • Active shield and environmental sensors
  • Memory protection unit (MPU)
  • Monitoring of environmental parameters (power and clock)
  • Hardware and software protection against fault injection
  • AIS-31 Class P2 compliant true random number generator (TRNG)
  • Cryptographic algorithms:
    • RSA key generation from 512 to 2048 with a 2-byte step
    • RSA signature and encryption
    • SHA-1 and SHA-256
    • AES-128 in CTR mode
• Performance and resource features
  • SHA1 computation for 64-byte block: 155 μs1
  • Signature with a 2048-bit key: 150 ms
  • Signature with a 1024-bit key: 30 ms(a)
  • NV storage allocated space: 4 Kbytes (1.2 Kbytes used by EK certificate)
  • Supported 2048-bit key slots:
    • up to 10 key slots (without EK and SRK)
    • 1 key slot in volatile memory for high-frequency loading use case

功能框图