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2. Next to "2-Step Verification," click Turn on 2SV. 3. Click Get started. 4. Select Authenticator app for your 2-step verification method.-To see this option, you'll need to have at least 2 recovery methods on your account . 5. Click Continue. 6. Scan the QR code using your authenticator app. 7. Click Continue. 8. Enter the code shown in your ...
Two-pass verification, also called double data entry, is a data entry quality control method that was originally employed when data records were entered onto sequential 80-column Hollerith cards with a keypunch. In the first pass through a set of records, the data keystrokes were entered onto each card as the data entry operator typed them.
When you get your Security Key back or get a new key, you can re-enable 2-Step Verification in your Account Security settings. Still need help? Call paid premium support at 1-800-358-4860 to get live expert help from AOL Customer Care.
For cryptographic systems with these two specific design goals [clarification needed], see HMAC. Check digits and parity bits are special cases of checksums, appropriate for small blocks of data (such as Social Security numbers , bank account numbers, computer words , single bytes , etc.).
From the definition of r, this is verification step 6. This shows only that a correctly signed message will verify correctly; other properties such as incorrectly signed messages failing to verify correctly and resistance to cryptanalytic attacks are required for a secure signature algorithm.
Step 2: The columns from step 1 are written into the second grid (which has the key AEROPLANES). The columns are read off in alphabetical order according to the key, into the next grid (see step 3). Step 3: The ciphertext is often written out in blocks of 5, e.g. RIAES NNELI EEIRP etc.
The resulting likelihood function is mathematically similar to the tobit model for censored dependent variables, a connection first drawn by James Heckman in 1974. [2] Heckman also developed a two-step control function approach to estimate this model, [3] which avoids the computational burden of having to estimate both equations jointly, albeit ...
In the verification proof, the initial value of a and b is denoted by the constant A and B, respectively. The proof is best read backwards, starting from line 7; for example, line 5 is obtained from line 7 by replacing a (target expression in line 6) by a − b {\displaystyle a-b} (source expression in line 6).