Checking in some work. Keygen is done (with confirmation of data formatting output pending), and dh params is way easier than I thought it would be. We shouldn't need to regenerate dhparams. i *think*.

moduli/struct.go

@@ -17,3 +17,62 @@
 */
 
 package moduli
+
+import (
+	"math/big"
+	"time"
+)
+
+// Moduli contains all data needed for generated /etc/ssh/moduli. of ModuliEntry entries.
+type Moduli struct {
+	Header string
+	Params []ModuliEntry
+}
+
+// Moduli is a struct reflecting the format of a single /etc/ssh/moduli entry. See moduli(5) for details.
+type ModuliEntry struct {
+	Time time.Time // YYYYMMDDHHSS
+	/*
+		// man 5 moduli:
+			Decimal number specifying the internal structure of the prime modulus.  Supported types are:
+			0     Unknown, not tested.
+			2     "Safe" prime; (p-1)/2 is also prime.
+			4     Sophie Germain; 2p+1 is also prime.
+			Moduli candidates initially produced by ssh-keygen(1) are Sophie Germain primes (type 4).
+			Further primality testing with ssh-keygen(1) produces safe prime moduli (type 2) that are ready for use in sshd(8).
+			Other types are not used by OpenSSH.
+	*/
+	Type uint8
+	/*
+		// man 5 moduli:
+			Decimal number indicating the type of primality tests that the number has been
+			subjected to represented as a bitmask of the following values:
+			0x00  Not tested.
+			0x01  Composite number – not prime.
+			0x02  Sieve of Eratosthenes.
+			0x04  Probabilistic Miller-Rabin primality tests.
+			The ssh-keygen(1) moduli candidate generation uses the Sieve of Eratosthenes (flag 0x02).
+			Subsequent ssh-keygen(1) primality tests are Miller-Rabin tests (flag 0x04).
+	*/
+	Tests uint8
+	/*
+		// man 5 moduli:
+			Decimal number indicating the number of primality trials that have been performed on the modulus.
+	*/
+	Trials uint8
+	/*
+		// man 5 moduli:
+			Decimal number indicating the size of the prime in bits.
+	*/
+	Size uint8
+	/*
+		// man 5 moduli:
+			The recommended generator for use with this modulus (hexadecimal).
+	*/
+	Generator uint8
+	/*
+		// man 5 moduli:
+			The modulus itself in hexadecimal.
+	*/
+	Modulus big.Int
+}