How does Akamai's "secure heap" patch to OpenSSL work?

from blog Alex Clemmer, | ↗ original
For more than a decade, Akamai has guarded their users’ private RSA keys using a security-conscious variant of the malloc family. In effect, this allows their systems to maintain a second, more secure heap, which makes it significantly harder to execute a broad class of security vulnerabilities. Yesterday, Rich Salz disseminated a patch to...