Securely booting a computing device

Technologies for securely booting a computing device includes a security engine of the computing device that consecutively determines a hash value for each block of initial boot firmware and generates an aggregated hash value from the hash value determined for each of the blocks. A processor of the computing device determines whether the aggregated hash value matches a reference checksum value. Initialization of the processor is completed in response to a determination that the aggregated hash value matches the reference checksum value. In some embodiments, the security engine consecutively retrieves each block of the initial boot firmware from a memory of the computing device, stores each retrieved block in a secure memory of the security engine, and determines the hash value for each stored block. Each block stored in the secure memory is copied to a portion of a cache memory of the processor initialized as Cache as RAM. 用于安全地引导计算设备的技术包括计算设备的安全引擎，该安全引擎连续地确定针对初始引导固件的每个块的哈希值，并且根据所确定的针对这些块中的每个块的哈希值来生成聚合的哈希值。计算