ST33TPHF20SPI datasheet(36/47 Pages) STMICROELECTRONICS

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FIPS140-2 SECURITY POLICY

Page 36 of 47

NON-PROPRIETARY DOCUMENT

3.3

Key management

3.3.1

Key entry and output

Next table indicates the approved method used to encrypt all secret, private keys and data

(indicated by S for secret value, P for private key and D for user defined data in type column),

entered into or output from the cryptographic module.

Table 19 : Encrypted methods for secret and private keys input

Service

Parameter name

Type

Input or

output

Encryption

algorithm

TPM2_ActivateCredential

credentialBlob

Input

AES CFB

secret

Input

RSA OAEP or ECDH

TPM2_ContextSave

context

Output

AES CFB

TPM2_ContextLoad

context

Input

AES CFB

TPM2_Create

inSensitive

P / S

Input

AES CFB (*)

outPrivate

P / S

Output

AES CFB

TPM2_CreatePrimary

inSensitive

P / S

Input

AES CFB (*)

TPM2_Duplicate

encryptionKeyIn

(if present)

Input

AES CFB (*)

encryptionKeyOut

Output

AES CFB (*)

duplicate

Output

AES CFB

outSymSeed

Output

RSA OAEP or ECDH

TPM2_EventSequenceComplete

buffer

Input

AES CFB (*)

TPM2_GetRandom

randomBytes

Output

AES CFB (**)

TPM2_Hash

data

Input

AES CFB (*)

TPM2_HashSequenceStart

auth

Input

AES CFB (*)

TPM2_HierarchyChangeAuth

newAuth

Input

AES CFB (*)

TPM2_HMAC

buffer

Input

AES CFB (*)

TPM2_HMACStart

auth

Input

AES CFB (*)

TPM2_Import

encryptionKeyIn

(if present)

Input

AES CFB (*)

duplicate

Input

AES CFB

inSymSeed

Input

RSA OAEP or ECDH

outPrivate

Output

AES CFB

TPM2_Load

inPrivate

P / S

Input

AES CFB

TPM2_LoadExternal

inPrivate

P / S

Input

AES CFB (*)

TPM2_MakeCredential

credentialBlob

Output

AES CFB

secret

Output

RSA OAEP or ECDH

TPM2_NV_ChangeAuth

newAuth

Input

AES CFB (*)

TPM2_NV_DefineSpace

auth

Input

AES CFB (*)

TPM2_NV_Extend

data

Input

AES CFB (*)

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