Diagnóstico de Cloudflare R2

Verificando credenciales:
Account ID: 59dacfc6bd...ea44 (longitud: 32)
Access Key: 2ca7b68780...b2ee (longitud: 32)
Secret Key: 93083a07af...15cb (longitud: 64)
Bucket: speedy

Verificando extensiones PHP:
cURL: ✅ Habilitado
OpenSSL: ✅ Habilitado

Endpoint construido:
URL: https://59dacfc6bd799d5c0a9f77e5be29ea44.r2.cloudflarestorage.com/speedy/

Prueba 1: Verificando conectividad básica
HTTP Code: 400
✅ Conexión establecida

Prueba 2: Probando autenticación AWS Signature V4
HTTP Code: 200
✅ AUTENTICACIÓN EXITOSA!
Respuesta:

HTTP/1.1 200 OK
Date: Sun, 02 Aug 2026 11:12:36 GMT
Content-Type: application/xml
Content-Length: 362837
Connection: keep-alive
Server: cloudflare
CF-RAY: a24ca6017cbe2e22-DFW

<?xml version="1.0" encoding="UTF-8"?><ListBucketResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/"><Name>speedy</Name><Contents><Key>imagenes/.JPEG</Key><Size>0</Size><LastModified>2026-03-30T19:33:48.553Z</LastModified><Owner><ID>59dacfc6bd799d5c0a9f77e5be29ea44</ID><DisplayName>59dacfc6bd799d5c0a9f77e5be29e

Prueba 3: Intentando listar buckets
HTTP Code: 403
Respuesta:

<?xml version="1.0" encoding="UTF-8"?><Error><Code>SignatureDoesNotMatch</Code><Message>The request signature we calculated does not match the signature you provided. Check your secret access key and signing method.</Message><StringToSign>AWS4-HMAC-SHA256
20260802T111236Z
20260802/auto/s3/aws4_request
319fc2d320a05ff7d6d4d0b5c80c2914ac66de7de2e826c6b00669d6d802b2ce</StringToSign><StringToSignBytes>41 57 53 34 2d 48 4d 41 43 2d 53 48 41 32 35 36 0a 32 30 32 36 30 38 30 32 54 31 31 31 32 33 36 5a 0a 32 30 32 36 30 38 30 32 2f 61 75 74 6f 2f 73 33 2f 61 77 73 34 5f 72 65 71 75 65 73 74 0a 33 31 39 66 63 32 64 33 32 30 61 30 35 66 66 37 64 36 64 34 64 30 62 35 63 38 30 63 32 39 31 34 61 63 36 36 64 65 37 64 65 32 65 38 32 36 63 36 62 30 30 36 36 39 64 36 64 38 30 32 62 32 63 65</StringToSignBytes><CanonicalRequest>GET
/

host:59dacfc6bd799d5c0a9f77e5be29ea44.r2.cloudflarestorage.com
x-amz-content-sha256:UNSIGNED-PAYLOAD
x-amz-date:20260802T111236Z

host;x-amz-content-sha256;x-amz-date
UNSI