config BR2_PACKAGE_TPM2_TOTP
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bool "tpm2-totp"
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depends on !BR2_STATIC_LIBS # tpm2-tss
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depends on !BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM # glibc < 2.20
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select BR2_PACKAGE_LIBQRENCODE
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select BR2_PACKAGE_TPM2_TSS
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help
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This is a reimplementation of Matthew Garrett's tpmtotp
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software for TPM 2.0 using the tpm2-tss software stack. Its
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purpose is to attest the trustworthiness of a device against
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a human using time-based one-time passwords (TOTP),
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facilitating the Trusted Platform Module (TPM) to bind the
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TOTP secret to the known trustworthy system state. In
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addition to the original tpmtotp, given the new capabilities
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of in-TPM hmac calculation, the tpm2-totp's secret HMAC keys
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do not have to be exported from the TPM to the CPU's RAM on
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boot anymore.
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https://github.com/tpm2-software/tpm2-totp
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comment "tpm2-totp needs a toolchain w/ dynamic library"
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depends on BR2_STATIC_LIBS
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depends on !BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM
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