Skip to content

Add SHA-3 hash reporting support #13

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
MolhamHamwi wants to merge 1 commit into
base: main
Choose a base branch
from
Open

Add SHA-3 hash reporting support #13

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
48 changes: 35 additions & 13 deletions index.html
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -287,9 +287,10 @@ <h5 class="fw-bold">Drag & Drop Evidence Files Here</h5>
<tr class="table-header">
<th width="5%" class="ps-4"><input type="checkbox" id="selectAll" onclick="toggleAll(this)"></th>
<th width="5%">#</th>
<th width="30%">Filename</th>
<th width="20%">MD5 Hash</th>
<th width="40%">SHA-256 (Section 63 BSA Compliant)</th>
<th width="25%">Filename</th>
<th width="18%">MD5 Hash</th>
<th width="32%">SHA-256 (Section 63 BSA Compliant)</th>
<th width="20%">SHA-3-256 Hash</th>
</tr>
</thead>
<tbody id="hashTableBody" style="background: white;"></tbody>
Expand Down Expand Up @@ -497,6 +498,7 @@ <h6 class="fw-bold mt-3">Yahoo/Outlook:</h6>
</td>
<td class="hash-font md5">Calculating...</td>
<td class="hash-font sha256">Calculating...</td>
<td class="hash-font sha3">Calculating...</td>
</tr>
`);
fileQueue.push({ file, rowId });
Expand All @@ -519,6 +521,8 @@ <h6 class="fw-bold mt-3">Yahoo/Outlook:</h6>
if (row) {
row.querySelector('.md5').innerText = CryptoJS.MD5(wordArray).toString();
row.querySelector('.sha256').innerText = CryptoJS.SHA256(wordArray).toString();
row.querySelector('.sha3').innerText = CryptoJS.SHA3(wordArray, { outputLength: 256 }).toString();
console.log(`SHA-3-256 calculated for ${file.name}`);
Comment on lines 523 to +525
}
processQueue();
}, 50);
Expand Down Expand Up @@ -612,7 +616,8 @@ <h6 class="fw-bold mt-3">Yahoo/Outlook:</h6>

const text = await readFile(files[i]);
const emailData = parseEml(text);
const sha256 = await calculateSHA256(files[i]);
const sha256 = await calculateHash(files[i], 'SHA256');
const sha3 = await calculateHash(files[i], 'SHA3-256');

Comment on lines 617 to 621
// HEADER WITH WRAPPED FILENAME
doc.setFillColor(0, 51, 102);
Expand Down Expand Up @@ -646,7 +651,8 @@ <h6 class="fw-bold mt-3">Yahoo/Outlook:</h6>
['Message-ID', emailData.messageId],
['Originating IP', emailData.serverIP],
['DKIM Status', emailData.dkim],
['SHA-256 Hash', sha256]
['SHA-256 Hash', sha256],
['SHA-3-256 Hash', sha3]
],
theme: 'grid',
headStyles: {
Expand Down Expand Up @@ -715,7 +721,8 @@ <h6 class="fw-bold mt-3">Yahoo/Outlook:</h6>
rows.push([
cells[1].innerText,
cells[2].innerText,
cells[4].innerText
cells[4].innerText,
cells[5].innerText
]);
}
});
Expand All @@ -727,7 +734,7 @@ <h6 class="fw-bold mt-3">Yahoo/Outlook:</h6>

doc.autoTable({
startY: 70,
head: [['#', 'Filename', 'SHA-256']],
head: [['#', 'Filename', 'SHA-256', 'SHA-3-256']],
body: rows,
theme: 'grid',
headStyles: {
Expand All @@ -741,8 +748,9 @@ <h6 class="fw-bold mt-3">Yahoo/Outlook:</h6>
},
columnStyles: {
0: { cellWidth: 40 },
1: { cellWidth: 300 },
2: { cellWidth: 450, font: 'courier' }
1: { cellWidth: 240 },
2: { cellWidth: 270, font: 'courier' },
3: { cellWidth: 270, font: 'courier' }
}
});

Expand Down Expand Up @@ -782,6 +790,13 @@ <h6 class="fw-bold mt-3">Yahoo/Outlook:</h6>
alignment: AlignmentType.CENTER
})],
shading: { fill: "003366" }
}),
new TableCell({
children: [new Paragraph({
children: [new TextRun({ text: "SHA-3-256", bold: true, color: "FFFFFF" })],
alignment: AlignmentType.CENTER
})],
shading: { fill: "003366" }
})
]
}));
Expand All @@ -795,6 +810,9 @@ <h6 class="fw-bold mt-3">Yahoo/Outlook:</h6>
new TableCell({ children: [new Paragraph(cells[2].innerText)] }),
new TableCell({ children: [new Paragraph({
children: [new TextRun({ text: cells[4].innerText, font: "Courier New", size: 18 })]
})] }),
new TableCell({ children: [new Paragraph({
children: [new TextRun({ text: cells[5].innerText, font: "Courier New", size: 18 })]
})] })
]
}));
Expand Down Expand Up @@ -837,7 +855,7 @@ <h6 class="fw-bold mt-3">Yahoo/Outlook:</h6>

// ===== DOWNLOAD CSV =====
function downloadSelectedCSV() {
let csv = "#,Subject,From,To,Date,Originating IP,DKIM,SHA-256\n";
let csv = "#,Subject,From,To,Date,Originating IP,DKIM,SHA-256,SHA-3-256\n";

let counter = 1;
const promises = [];
Expand All @@ -848,7 +866,7 @@ <h6 class="fw-bold mt-3">Yahoo/Outlook:</h6>
promises.push(
readFile(tr.fileData).then(text => {
const eml = parseEml(text);
return `${counter++},"${eml.subject}","${eml.from}","${eml.to}","${eml.date}","${eml.serverIP}","${eml.dkim}","${cells[4].innerText}"\n`;
return `${counter++},"${eml.subject}","${eml.from}","${eml.to}","${eml.date}","${eml.serverIP}","${eml.dkim}","${cells[4].innerText}","${cells[5].innerText}"\n`;
})
Comment on lines 867 to 870
);
}
Expand Down Expand Up @@ -883,11 +901,15 @@ <h6 class="fw-bold mt-3">Yahoo/Outlook:</h6>
});
}

async function calculateSHA256(file) {
async function calculateHash(file, algorithm = 'SHA256') {
return new Promise(resolve => {
const reader = new FileReader();
reader.onload = e => {
const wordArray = CryptoJS.lib.WordArray.create(e.target.result);
if (algorithm === 'SHA3-256') {
resolve(CryptoJS.SHA3(wordArray, { outputLength: 256 }).toString());
return;
}
resolve(CryptoJS.SHA256(wordArray).toString());
};
Comment on lines +904 to 914
reader.readAsArrayBuffer(file);
Expand Down Expand Up @@ -924,7 +946,7 @@ <h6 class="fw-bold mt-3">Yahoo/Outlook:</h6>
const response = document.getElementById('botResponse');
let text = "";
if (type === 'BSA') text = "Section 63(4) of BSA 2023 (formerly 65B IEA) requires electronic evidence to be accompanied by a certificate for court admissibility.";
if (type === 'HASH') text = "SHA-256 cryptographic hash ensures file integrity and proves the evidence hasn't been tampered with since collection.";
if (type === 'HASH') text = "SHA-256 and SHA-3-256 cryptographic hashes ensure file integrity and prove the evidence hasn't been tampered with since collection.";
if (type === 'EML') text = "Gmail: Open email → Three Dots (⋮) → Download message. Always use .EML format for legal integrity.";
response.innerHTML = `<span class="bg-primary text-white p-2 rounded shadow-sm d-inline-block mt-2">${text}</span>`;
}
Expand Down
Loading