| Operations | Definition |
| Generate/Select | yyyddd. |
| Store | yyyddd. |
| Distribute | yyyddd. |
| Use | yyyddd. |
| Destroy | yyyddd. |
| Operands | Definition |
| Data | The data value of an object -- stored in object's memory. |
| Causes | Definition |
| Code Defect Bug | The operation has a bug, which is the first cause for the chain of weaknesses underlying a software security vulnerability. The bug must be fixed to resolve the vulnerability. |
| Missing Code | The entire operation implementation or a part of its specification is absent. |
| Added Code | The operation implementation adds a step to its specification. |
| Erroneous Code | The operation implementation has a bug. |
| Specification Defect Bug | A specification (algorithm, protocol) of an operation an error or a rule (policy, keying material) used by the operation has an error, which when implemented becomes the bug causing the chain of weaknesses underlying a software security vulnerability. It must be fixed to fix the bug and to resolve the vulnerability. |
| Wrong Algorithm | An inadequate, weak (incl. due to Insecure Mode of Operation), risky, or broken cryptographic algorithm or step. |
| Data Fault | The object data has harmed semantics or inconsistent or wrong value |
| Weak Keying Material | yyyddd. |
| Consequences | Definition |
| Data Error | The object data has harmed semantics or inconsistent or wrong value |
| Weak Keying Material | yyyddd. |
| Data Security Final Error | yyyddd |
| Revealed IV | A secret, public, or private key is exposed. |
| Revealed Shared Secrets | A pre-master or other secret is exposed. |
| Revealed Domain Parameter | A xxx is exposed. |
| Revealed Random Bits | A random number (inlc. a salt or a nonce) is exposed. |
| Operations Attributes | Definition |
| Mechanism | Shows how the buggy/faulty operation code is performed. |
| Hash + RND | Hash Function + Random Numbers. |
| MAC | Message Authentication Code. |
| Digital Signature | yyyddd. |
| Source Code | Shows where the buggy/faulty operation code is in the program -- in what kind of software. |
| Codebase | The operation is in the programmer's code - in the application itself. |
| Third-Party | The operation is in a third-party software. |
| Standard Library | The operation is in the standard library for a particular programming language. |
| Compiler/Interpreter | The operation is in the language processor that allows execution or creates executables (compiler, assembler, interpreter). |
| Execution Space | Shows where the buggy/faulty operation code is running or with what privilege level). |
| Userland | The bugged code runs in an environment with privilege levels, but in unprivileged mode (e.g., ring 3 in x86 architecture). |
| Kernel | The bugged code runs in an environment with privilege levels with access privileged instructions (e.g., ring 0 in x86 architecture). |
| Bare-Metal | The bugged code runs in an environment without privilege control. Usually, the program is the only software running and has total access to the hardware. |
| Operands Attributes | Definition |
| Data Kind | Shows what the data value is. |
| Hashes | Fixed-length bit strings mapped by a hash function from arbitrary length bit strings. They are used for integrity authentication. They are cryptographic data. |
| Keying Material | Cryptographic keys (secret, public, private) and other crypto algorithm parameters (initialization vectors (IVs), shared secrets (e.g. pre-master secrets), domain parameters, and random bits (eandom number - RBG seeds, salt, nonce). |
| Digital Certificate | yyyddd They are sensitive data. |
| Data State | Shows where the data come from. |
| Entered | The data are from a user via a user interface (e.g., text field). |
| Stored | The data are from a permanent storage (e.g., file, database on a storage device). |
| In Use | The data are from a volatile storage (e.g., RAM, cache memory). |
| Transferred | The data are from another device via a network (e.g., connecting analog device or another computer). |
