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security(lib): enforce single-use encryption contexts

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This commit is contained in:
Leo Galambos
2026-07-29 17:28:32 +02:00
parent 8af75a9508
commit 9bbcab7522
18 changed files with 673 additions and 160 deletions
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7
app/src/test/java/zeroecho/GuardTest.java
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@@ -196,11 +196,10 @@ public class GuardTest {
final int tagBits = 128;
final String aadAes = "010203";
final String aadCha = "D00DFEED";
final String chNonce = "00112233445566778899AABB";
System.out.println(method);
System.out.println("...params: sizeAes=" + sizeAes + " sizeCha=" + sizeCha + " tagBits=" + tagBits + " aadAes="
+ aadAes + " aadCha=" + aadCha + " chNonce=" + chNonce);
+ aadAes + " aadCha=" + aadCha);
// Prepare keyring with RSA pair
Path ring = tmp.resolve("ring-rsa.txt");
@@ -237,13 +236,13 @@ public class GuardTest {
Path dec = tmp.resolve("rsa-pt-ch.bin.dec");
String[] encArgs = { "--encrypt", in.toString(), "--output", enc.toString(), "--keyring", ring.toString(),
"--to-alias", rsa.pub, "--alg", "chacha-aead", "--aad-hex", aadCha, "--nonce-hex", chNonce };
"--to-alias", rsa.pub, "--alg", "chacha-aead", "--aad-hex", aadCha };
System.out.println("...ChaCha encrypt: " + Arrays.toString(encArgs));
int e = Guard.main(encArgs, new Options());
assertEquals(0, e, "... ChaCha encrypt rc");
String[] decArgs = { "--decrypt", enc.toString(), "--output", dec.toString(), "--keyring", ring.toString(),
"--priv-alias", rsa.prv, "--alg", "chacha-aead", "--aad-hex", aadCha, "--nonce-hex", chNonce };
"--priv-alias", rsa.prv, "--alg", "chacha-aead", "--aad-hex", aadCha };
System.out.println("...ChaCha decrypt: " + Arrays.toString(decArgs));
int d = Guard.main(decArgs, new Options());
assertEquals(0, d, "... ChaCha decrypt rc");

7
app/src/test/java/zeroecho/KemTest.java
View File

@@ -142,11 +142,10 @@ public class KemTest {
final int gcmTagBits = 128;
final String aadAes = "A1B2C3";
final String aadChaCha = "DEADBEEF";
final String nonceChaCha = "00112233445566778899AABB";
System.out.println(method);
System.out.println("...params: aesSize=" + aesSize + " chachaSize=" + chachaSize + " gcmTagBits=" + gcmTagBits
+ " aesAAD=" + aadAes + " chachaAAD=" + aadChaCha + " chachaNonce=" + nonceChaCha);
+ " aesAAD=" + aadAes + " chachaAAD=" + aadChaCha);
// Discover KEM ids via the CLI (ensures we use exactly the ids users will see).
List<String> kemIds = listKemsViaCli();
@@ -209,14 +208,14 @@ public class KemTest {
System.out.println("...[" + kemId + "] ChaCha encrypt");
int e = Kem.main(new String[] { "--encrypt", plain.toString(), "--output", enc.toString(),
"--keyring", ring.toString(), "--pub", aliases.pub, "--kem", kemId, "--chacha",
"--chacha-nonce", nonceChaCha, "--aad", aadChaCha, "--header" }, new Options());
"--aad", aadChaCha, "--header" }, new Options());
if (e != 0) {
throw new IllegalStateException("ChaCha encrypt rc=" + e);
}
System.out.println("...[" + kemId + "] ChaCha decrypt");
int d = Kem.main(new String[] { "--decrypt", enc.toString(), "--output", dec.toString(),
"--keyring", ring.toString(), "--priv", aliases.prv, "--kem", kemId, "--chacha",
"--chacha-nonce", nonceChaCha, "--aad", aadChaCha, "--header" }, new Options());
"--aad", aadChaCha, "--header" }, new Options());
if (d != 0) {
throw new IllegalStateException("ChaCha decrypt rc=" + d);
}